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Andrew Yi (SLAC National Accelerator Laboratory)09/11/2026, 09:30Plenary Presentation
QCD axions are the resulting bosons from the Peccei-Quinn mechanism which solves the strong CP problem, and are also a convincing candidate for wavelike dark matter. Located at the University of Washington, the Axion Dark Matter Experiment (ADMX) is an axion haloscope currently probing axions at Dine-Fischler-Srednicki-Zhitnitskii (DFSZ) sensitivities from 1.02 to 1.39 GHz (4.22 - 5.75 µeV)....
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Prof. Elisabetta Barberio (University of Melbourne)09/11/2026, 10:30Invited Presentation
SABRE South is located at the Stawell Underground Physics Laboratory (SUPL), the only deep underground laboratory in the Southern Hemisphere, 1025 m underground (~2900 m water equivalent) in the Stawell Gold Mines, Victoria. The detector uses ultra-high-purity NaI(Tl) crystals with purity comparable to DAMA, combined with an active liquid scintillator and muon veto system. Together with its...
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Alexander Bohmer (Vienna University of Technology (AT))09/11/2026, 10:50Oral Presentation
COSINUS is a cryogenic direct detection experiment for dark matter located at the Laboratori Nazionali del Gran Sasso (LNGS) Underground Laboratory in Italy. Its primary goal is to provide a model-independent crosscheck of the long-standing annual modulating claim by DAMA/LIBRA. Therefore, COSINUS uses the same absorber material (NaI) as in DAMA/LIBRA, but operates it with a...
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Dr Leanne Duffy (Los Alamos National Laboratory)09/11/2026, 11:05Oral Presentation
Optical Quantum Sensors (OQS) are extremely sensitive ambient-temperature magnetometers which can be applied in axion dark matter searches using an inductor-capacitor (LC) circuit. At Los Alamos National Laboratory, we recently proposed to develop a sensitive search for ultralight axion dark matter by pushing OQS sensitivity to a world first level of 60 aT/Hz$^{1/2}$. Combining this OQS with a...
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Robert James (The University of Melbourne)09/11/2026, 11:20Invited Presentation
Dual-phase xenon time projection chambers are the leading technology in the search for WIMP dark matter. The LUX- ZEPLIN (LZ) experiment is the largest of its kind currently operating, deploying a 7 tonne liquid xenon active volume and two veto subsystems deep underground at the Sanford Underground Research Facility in Lead, South Dakota, USA. LZ currently boasts world-leading constraints on...
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Theresa Fruth (University of Sydney)09/11/2026, 11:40Oral Presentation
Currently running two-phase xenon time-projection chambers are at the forefront of the search for dark matter interactions via nuclear recoils in the mass range above a few $\textrm{GeV}/\textrm{c}^{2}$. The XLZD collaboration brings together the expertise of the XENON, LUX-ZEPLIN and DARWIN collaborations to construct a next-generation experiment capable of exploring the WIMP parameter space...
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Raphael Cervantes09/11/2026, 13:15Invited Presentation
The Superconducting Quantum Materials and Systems Center (SQMS) recently conducted a Dark Photon Dark Matter search in the 4.5 GHz to 7.1 GHz range using a widely-tunable superconducting haloscope. I will present the cavity design and characterization, analyze the impact of microphonics on system performance and haloscope sensitivity, and describe our tuning methodology for this Q~10^8 cavity....
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Peter McNamara09/11/2026, 13:35Invited Presentation
SuperCDMS SNOLAB is a cryogenic experiment projected to achieve world-leading sensitivity for dark matter masses below 10 GeV using semiconductor crystal detectors. The experiment employs two detector types - iZIP detectors with combined phonon and charge readout providing excellent nuclear recoil/electron recoil discrimination, and HV detectors which amplify phonon energy proportional to an...
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37. ORGAN-Low : Pathfinder Search for Sub-μeV Axion Dark Matter with the Re-entrant Haloscope DesignRaj Aryan Singh (Swinburne University of Technology)09/11/2026, 13:55Oral Presentation
The QCD axion remains one of the most compelling dark matter candidates, offering a simultaneous solution to the Strong CP problem and the nature of dark matter. Axion haloscopes search for this particle through its resonant conversion into microwave photons in a strong magnetic field, but most mature experimental sensitivity has so far been concentrated at GHz frequencies. The lower-frequency...
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Tobias Schiffer (University of Bonn (DE))09/11/2026, 14:10Oral Presentation
The non-discovery of WIMPs at the LHC and the negative outcome of direct detection experiments have led to a steadily increasing interest in models with light dark matter. Models with a dark matter candidate that has a mass below the Lee-Weinberg bound can predict the right dark matter relic density if a new gauge interaction is introduced in addition to the dark matter candidate. The new...
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Suerfu Burkhant (The University of Melbourne)09/11/2026, 14:25Oral Presentation
Recently, there has been an increasing interest in searching for low-mass dark matter. To address this new direction, a new experimental setup for low-mass dark matter searches has been commissioned at the Kamioka Underground Laboratory. A dilution refrigerator has been installed underground, and gamma and neutron shielding is under construction. Ambient gamma and neutron levels have been...
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Xiaolin Ma (KEK/QUP)09/11/2026, 14:40Oral Presentation
Quantum geometric phases convert weak new-physics signals into measurable phases through controlled oscillator trajectories. I will discuss applications to bosonic dark matter and spin-dependent fifth forces. In cavity systems, coherent displacement and squeezing amplify the phase induced by dark photons or axions, enabling sensitivity beyond the standard quantum limit. In trapped ions, a...
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Dr Jongkuk Kim (Kangwon National University)09/11/2026, 15:20Poster Presentation
In 2023, the Belle II Collaboration announced the observation of the
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B→K+νν decay channel for the first time. This decay channel provides a clean signal with high precision in theoretical calculations. However, we encounter a 2.8σ deviation from the Standard Model prediction. To resolve this excess, we study a scalar dark matter model with local discrete Z_3 symmetry. Assuming dark... -
Ananthu Krishnan Anilkumar (University of Sydney)09/11/2026, 15:22Student/ECR Presentation
If dark matter is axions that solve the strong CP problem and the symmetry breaking of the axion field happens after inflation, there exists the possibility that the axions are clumped into asteroid sized objects called miniclusters. But these objects formed in the early universe is likely disrupted by the tidal forces and stellar interaction at late times, causing the local dark matter...
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Cedric Quint (Max Planck Institute for Nuclear Physics)09/11/2026, 15:24Student/ECR Presentation
We study axion-like particle (ALP) production via proton bremsstrahlung in proton beam dumps. Using the Weizsäcker-Williams approximation and the ALPINIST framework, we compute ALP production rates and derive constraints on the product of ALP-electron and ALP-proton couplings, $g_eg_p$, via the decay channel $a \rightarrow e^+ e^-$. We further assess the sensitivity of our results to the...
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Akira Miyazaki (Université Paris-Saclay (FR))09/11/2026, 15:26Poster Presentation
We generalize Glauber’s theorem to quantum fields generated by classical sources, including axion dark matter and gravitational waves. In quantum optics, Glauber’s theorem states that a classical current produces quantized photons in a coherent state. Likewise, the linearity of the inverse Primakoff and Gertsenshtein effects leads to coherent photon states in resonant cavities driven by...
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Akira Miyazaki (Université Paris-Saclay (FR))09/11/2026, 15:28Poster Presentation
One of the major challenges facing current dark matter haloscopes is frequency tuning in a cryogenic environment. Mechanical tuning becomes increasingly impractical for plasma haloscopes operating above 20 GHz because of the extremely fine structure of the wire arrays. In this work, we propose a novel method for tuning the resonant frequency of plasma haloscopes through the kinetic inductance...
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Charalampos Nikolis09/11/2026, 15:30Poster Presentation
Axion relic pockets are phase-transition remnants consisting of regions of false vacuum stabilised from collapse by a hot axion gas. Axion relic pockets can comprise dark matter, but little is known about their phenomenology. We consider trapped axions coupled to electromagnetism and show that axion-photon conversion occurs in atomic electric fields, leading to high-energy electromagnetic...
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Shunsuke Adachi (Okayama University)09/11/2026, 15:32Poster Presentation
Our project, DOSUE-RR (Dark-photon dark-matter Observing System for Un-Explored Radio-Range), is one of the experiments searching for dark matter using a dish antenna method. We particularly target the relatively high mass range above 100 $\mu$eV, covering the full millimeter-wave band from roughly 20 GHz to 300 GHz, which corresponds to a mass range of approximately 80 $\mu$eV to 1.2 meV....
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Yuya Mino (University of Tokyo)09/11/2026, 15:34Poster Presentation
Dark matter searches using superconducting qubits have so far been carried out with qubits individually fabricated for quantum-sensing purposes. Extending such searches to a broadband scan over many candidate dark matter masses using multiple qubits, however, requires a large number of high-quality qubits with well-controlled properties. Superconducting quantum computers, in contrast, provide...
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Yeray Garcia Del Castillo09/11/2026, 15:36Student/ECR Presentation
In the pre-inflationary scenario, axion dark matter is expected to be highly homogeneous, with perturbations sourced mainly by gravity. We study a recently proposed mechanism in which the axion field couples to the temperature fluctuations in the primordial plasma, analysing its interplay with gravitational perturbations. We show how these plasma-induced fluctuations are transferred to the...
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Jackson Mitchell-Bolton (University of Sydney)09/11/2026, 15:40Student/ECR Presentation
Pulsar polarisation arrays (PPAs) enable searches for oscillations in the polarisation position angle of radio waves induced by axion-like particles. They currently provide some of the strongest constraints on ultralight axion-like dark matter (ALDM) of mass 10^-24 eV < m_a < 10^-20 eV. However, other effects during propagation and reception of the radiation also modify its polarisation,...
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KARIN WATANABE (The University of Tokyo)09/11/2026, 15:42Student/ECR Presentation
We present a search for hidden photon dark matter using superconducting qubits, based on the method proposed by our group (Moroi et al., Phys. Rev. Lett. 131, 211001 (2023)). Hidden photon dark matter induces an AC electric field through kinetic mixing with ordinary photons. This electric field can excite a qubit on resonance. Assuming that fake excitations form an approximately...
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Dr Irene Bolognino (Adelaide University)09/11/2026, 15:44Poster Presentation
The SABRE South experiment, located at the Stawell Underground Physics Laboratory (SUPL) in Victoria, Australia, is an ultra-low-background dark matter experiment designed to test the long-standing annual modulation signal reported by DAMA/LIBRA. The detector employs ultra-pure NaI(Tl) crystals surrounded by an active liquid scintillator veto instrumented with 32 photomultiplier tubes (PMTs),...
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Shunki Endo (University of Tsukuba)09/11/2026, 15:46Student/ECR Presentation
The dark photon is one of the candidates for cold dark matter. It is theoretically motivated by specific models of string theory and inflation models, characterized by a very small mass in the range of$m_{\text{DP}} \approx \mu\text{eV} - \text{meV}$. It interacts with ordinary photons through a kinetic mixing parameter $\chi (\le 10^{-10})$. Driven by this interaction, the dark photon...
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Kan Nakazono (the University of Tokyo)09/11/2026, 15:48Student/ECR Presentation
Quantum devices based on Josephson junctions have attracted growing interest for ultra-light dark matter detection. In particular, superconducting qubits can be used as sensitive detectors [1, 2, 3, 4] or frequency tuners [5, 6, 7] in haloscope-like measurements for dark photon and axion searches.
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A direct excitation scheme using superconducting qubits [3] can combine high tunability,... -
Daniel Avraham09/11/2026, 15:50Student/ECR Presentation
The CYGNUS-OZ collaboration is pursuing the development of gaseous Time Projection Chambers (TPCs) for next-generation rare-event particle physics experiments that make use of the directional measurements achievable with these detectors. Directional detectors offer a powerful handle for distinguishing a genuine signals of interest from backgrounds. The quintessential use-case of directional...
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Mr Ryan Netrval (Max Planck Institute for Gravitational Physics)09/11/2026, 15:52Poster Presentation
Vacuum magnetic birefringence is a QED prediction in which a magnetic field makes the vacuum optically anisotropic. The expected birefringence is extremely small, approximately $4 \times 10^{-24} ~[\mathrm{T}^{-2}] \cdot B^2$, and has not yet been directly measured. A major limitation of cavity enhanced polarimetry is intrinsic birefringence noise, likely dominated by thermal fluctuations in...
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Ethan Han (Swinburne University of Technology)09/11/2026, 15:54Student/ECR Presentation
Superconducting RF cavities operating in magnetic fields are a promising technology for next generation axion dark matter searches, where ultra high quality factors are required to maximise detection sensitivity. Achieving these performance levels requires low loss superconducting surface coatings that retain their properties under strong magnetic fields and cryogenic conditions. A key...
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Maaz Hayat (University of Melbourne)09/11/2026, 15:56Poster Presentation
Invisible axion models are well motivated solutions to the strong CP problem, yet they typically contain a largely unconstrained flavour sector. I will present a predictive class of Minimal Flavoured DFSZ models in which the Peccei–Quinn symmetry simultaneously explains the observed pattern of quark masses and mixing while possessing a domain wall number of unity. The flavour structure is...
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Cindy Zhao (Quantum Technologies and Dark Matter Labs, Department of Physics, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.)09/11/2026, 15:58Student/ECR Presentation
High-quality microwave resonators are a key enabling technology for axion haloscopes and other wave-like dark matter experiments, where detector sensitivity depends critically on the stability and microwave loss of dielectric materials at cryogenic temperatures. Potassium tantalate (KTaO₃) is a promising quantum paraelectric dielectric owing to its high relative permittivity and intrinsically...
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Vera Butz (University of Heidelberg)09/11/2026, 16:02Poster Presentation
We calculate the axion flux from the Sun due to axion-electron interactions by fully accounting for electron transitions between different bound states. For multiple elements, we consider a wide range of ionization and excitation states and compute the axion-induced transitions between them.\
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The axion flux from axion-electron interactions is usually estimated via an approximate relation to... -
William Campbell (The University of Queensland)09/11/2026, 16:04Poster Presentation
Recent experiments have suggested future particle dark matter searches can be improved and even performed entirely with superconducting circuits [1]. However, superconducting qubits are highly susceptible to quasiparticle generation from background ionizing radiation, which produces energetic phonons capable of breaking Cooper pairs and inducing correlated errors. Following the observation of...
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Madeleine Carhart (University of Washington)09/11/2026, 16:06Student/ECR Presentation
DPHaSE (Dielectric Powder Haloscope SNSPD Experiment) is a broadband axion and dark photon search targeting QCD axion-photon couplings in the 10 meV-eV mass range. The haloscope makes use of dark matter to photon conversion on the surface of disordered dielectric powder, with conversion rate proportional to surface area. To achieve sensitivity in this mass range, our dielectric haloscope...
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Emma Paterson (University of Western Australia - QDM Labs)09/11/2026, 16:08Student/ECR Presentation
Ultralight axion dark matter may couple to electromagnetic fields through the interaction term $g_{a\gamma\gamma}a\,\mu_0\mathbf{E}\!\cdot\!\mathbf{H}$ [1-4]. Traditional cavity haloscopes exploit this coupling using a strong external DC magnetic field [5,6], whereas upconversion experiments use the spatial overlap between resonant electromagnetic modes to probe axion frequencies below the...
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Robert Crew (University of Western Australia - QDM Lab)09/11/2026, 16:10Student/ECR Presentation
We describe the readout system electronics used for detection of amplitude modulation sidebands induced by ultralight axions in a twisted anyon cavity. A twisted cavity with asymmetrical boundary conditions proposed in (Bourhill et al. 2023) was shown to generate helical radiation in a single eigenmode. That is, a single mode has a non-zero $\vec{E}\cdot \vec{B}$ product, hence can act as both...
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Paige Taylor (Swinburne University of Technology)09/11/2026, 16:12Student/ECR Presentation
The ORGAN experiment seeks to detect axion dark matter through its resonant conversion to microwave photons inside a strong magnetic field. With the ORGAN 1b run complete, attention turns to ORGAN 2a, which will probe the previously unexplored 15.96–16.15 GHz band, corresponding to axion masses of 66.0–66.8 μeV. Here we describe the design, optimisation, and performance of the rectangular...
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Sonali Parashar09/11/2026, 16:14Student/ECR Presentation
The Magnetically Transduced Gravitational-Wave Inertial Detector (MAGI) is a broadband experiment that uses a large static magnetic-field gradient generated within a superconducting magnet. The inertial pickup element operates in the free-mass regime [1], and its motion is measured inductively using a superconducting pickup loop coupled to either a superconducting quantum interference device...
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Jonathan Charlesworth (UWA)09/11/2026, 16:16Student/ECR Presentation
We utilise an effective-current framework for electromagnetic dipole generation to recover the axion-induced oscillating electric dipole moment of a static magnetic dipole $\vec{d}_a(t) = -\frac{g_{a\gamma\gamma} a(t)}{c} \vec{m}$. We extend this approach to more general axion-electromagnetic couplings, yielding oscillating electric and magnetic dipole moments $\vec{d}a(t) = g{aEM}a(t)...
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117. High-Resolution Axion Search with ORGAN-Q and Thin-Film Coupling for Multi-Resonator HaloscopesMr Michael Hatzon (University of Western Australia)09/11/2026, 16:18Student/ECR Presentation
The ORGAN-Q experiment is a dark matter microwave haloscope operated at millikelvin temperatures, featuring a Josephson parametric amplifier. Two simultaneous data streams were recorded during a search for axion dark matter between 6.15--6.35 GHz (25.45--26.27 $\mu$eV). The standard halo model axion search yielded the leading axion--photon exclusion limits across this interval. We report the...
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Muping Chen09/11/2026, 16:20Poster Presentation
We propose the use of sphere-and-plate Casimir force measurement setups to detect ultralight vector dark matter. We demonstrate that sub-picometer signals can be parametrically amplified to be detectable. We present a novel improvement that allows the continuous tuning of the natural frequency of the system, opening new research opportunities at the submicron scale. We show that the improved...
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Elrina Hartman (University of Western Australia)09/11/2026, 16:22Student/ECR Presentation
We studied the feasibility of implementing cryogenic bolometry for rare-event searches with the temperature-sensitive, high-Q whispering gallery mode in a sample of single-crystal calcium tungstate (CaWO$_4$) and present conservative estimates of the minimum energy threshold on the order of MeV.
Solid-state detectors for rare-event searches typically utilise a crystalline target coupled...
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Koki Aoyanagi (Kyoto University)09/11/2026, 16:24Student/ECR Presentation
Qubit-based readout technologies enable a SQL-free sensitivity in dark matter haloscope experiments, particularly in the high frequency regime (>5GHz). We are developing high frequency superconducting qubit detectors for direct excitation dark-photon searches above 20 GHz, where suitable devices have not yet been established. Toward this goal, we introduced a “double-oblique evaporation”...
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Jesse Schelfhout (University of Oxford)09/11/2026, 16:26Student/ECR Presentation
Atom interferometers are highly-versatile quantum sensors with applications ranging from geodesy and inertial navigation to fundamental physics studies. Differential measurements between two or more atom interferometers operated using a common laser beam offer the prospect for mid-frequency gravitational wave detection and a wide range of ultralight dark matter studies [1]. The sensitivity of...
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Chikara Kawai (The University of Tokyo)09/11/2026, 16:28Poster Presentation
Axions are well-motivated dark matter candidates that can be converted into extremely weak microwave photons in a strong magnetic field. At frequencies above a few gigahertz, axion searches relying on phase-preserving linear amplification are increasingly limited by the standard quantum limit, motivating the development of photon-counting receivers. Transmon-based single microwave photon...
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Kosuke Nakamura (Kyoto University)09/11/2026, 16:30Student/ECR Presentation
We propose a novel high frequency gravitational wave search using superconducting coplanar waveguide resonators, targeting the kHz-MHz band motivated by several theoretical predictions such as primordial gravitational waves and gravitational waves produced by the superradiance of coherent bosonic fields around black holes.
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The signature is periodic shifts in the resonator frequency caused by... -
Dan Zhang (University of Washington)09/11/2026, 16:32Poster Presentation
We estimate the synchrotron radiation emitted by cosmic-ray muons in a uniform magnetic field, focusing on the photon radiation from µeV to meV. Such events can potentially bring backgrounds to the axion dark matter searches. The GEANT4 software package is utilized to simulate the muon tracks in a cylindrical region of interest with an 8 T solenoid magnetic field applied. We further develop an...
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Zain Mehdi09/11/2026, 16:34Student/ECR Presentation
The interaction of light with light due to zero-point fluctuations of the matter vacuum is a century-old prediction of quantum field theory that has yet to be verified experimentally. This effect can be interpreted as the matter vacuum acquiring nonlinear properties akin to a dielectric medium. Experimental detection of this effect could enable properties of certain beyond-Standard-Model...
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Aaron Quiskamp` (UWA)09/11/2026, 16:36Poster Presentation
We operate two cryogenic quartz bulk-acoustic-wave (BAW) strain antennas of the Multi-mode Acoustic Gravitational-wave Experiment (MAGE) simultaneously in a single dilution refrigerator, one at millikelvin temperatures and the other at 1 K. Each is read by an independent SQUID amplifier chain, and both are digitised by a common radio-frequency system-on-chip (RFSoC) lock-in providing 64...
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Ophir Ruimi09/11/2026, 16:56Poster Presentation
The Earth-ionosphere environment can act as a transducer that transforms ultralight bosonic dark matter (axions and hidden photons) into an oscillating magnetic field with a specific pattern across the Earth's surface. We present results of the Search for Non-Interacting Particles Experimental Hunt (SNIPE Hunt), which attempts to detect such dark matter-induced magnetic field patterns by...
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Bingrong Yu (Cornell University)09/11/2026, 16:58Poster Presentation
The microscopic nature of dark matter is the major open question in science. Weakly-Interacting Massive Particles (WIMPs) and Axion-Like Particles (ALPs) are the two most theoretically motivated dark matter candidates. Thousands of papers consider them separately. We point out that if both species are present in the theory, even a tiny (Planck-suppressed) interaction between them could lead to...
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qazal rokn (Max Planck Institute for Gravitational Physics)10/11/2026, 08:40Poster Presentation
Axionlike particles are compelling ultralight dark matter candidates that may couple weakly to photons and induce minute, time varying rotations of the polarization state of light. Cavity enhanced polarimetry offers a promising route to probing such effects by amplifying small polarization changes over many optical round trips. In particular, a Fabry Perot cavity containing two intracavity...
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Aaron Dean Spector (Deutsches Elektronen-Synchrotron DESY)10/11/2026, 08:55Oral Presentation
The ALPS group at DESY has constructed a unique infrastructure for tests of fundamental physics consisting of two strings of 12 HERA dipole magnets. Each string provides 5.3 T magnetic fields over a length of roughly 100 m with cleanrooms in between the magnet strings and at the ends of the experiment. This environment is particularly well suited for experiments that use laser interferometry,...
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Dr Sheon Chua (The Australian National University)10/11/2026, 09:10Oral Presentation
Ultralight vector dark matter is expected to form a coherent oscillating field that can generate tiny, periodic forces detectable by precision instruments. Our differential torsion sensor focuses on detecting differential accelerations between beryllium (Be) and aluminium (Al) test masses, materials chosen for their contrasting neutron-to-mass ratios. By measuring the differential...
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Sephora Ruppert (Stanford University)10/11/2026, 09:25Oral Presentation
The Axion Dark Matter eXperiment (ADMX) is a major haloscope experiment that has achieved DFSZ sensitivity at around 1 GHz. VERA (“Volume Enhanced Resonators for Axions”) is an ADMX high-frequency working group that explores new geometries for resonators with volumes far exceeding $\lambda^3$ ($V\gg \lambda^3$). The main objective is to extend ADMX's sensitivity to theoretically motivated...
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Aya Keller (Stanford University)10/11/2026, 09:40Invited Presentation
DMRadio-50L is a lumped-element search for axion dark matter in the 5 kHz–5 MHz range, corresponding to axion masses of order 10⁻¹¹–10⁻⁸ eV. It combines a superconducting toroidal magnet, a high-Q tunable LC resonator, and a SQUID-based readout chain operating at mK temperatures to detect the narrowband electromagnetic response induced by axion dark matter.
This talk presents the first...
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Elena Pinetti (Flatiron Institute/Simons Foundation)10/11/2026, 10:30Plenary Presentation
Dark matter provides compelling evidence for physics beyond the Standard Model, motivating a broad landscape of candidates ranging from weakly interacting massive particles to ultralight axions. Astrophysical observations offer a complementary avenue to laboratory experiments for testing dark matter models across a broad range of masses and interaction strengths.
In this talk, I will...
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Dr Yuan-Hann Chang (Academia Sinica (TW))10/11/2026, 11:10Invited Presentation
The TASEH experiment searches for the Axion Dark Matter with a Haloscope detector, featuring a high-quality-factor cavity with tunable resonance frequency in a uniform magnetic field. The whole setup is maintain at a temperature of few tens of miliKelvin in a Dilution Refrigerator. The system design follows the concept developed by Sikivie and pioneered by ADMX and Haystack experiments....
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Graeme Flower (Universtiy of Western Australia)10/11/2026, 11:30Oral Presentation
The use of travelling wave parametric amplifiers (TWPAs) represents a convenient and effective readout strategy for axion haloscope experiments. TWPAs produce many GHz of broadband gain, typically covering the entire range of an experimental run, with near-quantum-limited added noise that is increasingly competitive with that of their resonant, narrowband counterparts. Beyond low-noise...
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Gray Rybka10/11/2026, 11:45Oral Presentation
QCD axions are expected to both mediate forces between nuclei and interact electromagnetically. Axion dark matter haloscope searches have exquisite sensitivity, but only to narrow bands of axion masses and rely on axions making up a known quantity of dark matter. 5th force experiments do not rely on dark matter and have a wide axion mass range, but are limited in coupling sensitivity. Is...
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Colin James Moore (Max-Planck-Institut für Physik)10/11/2026, 13:20Invited Presentation
CRESST-III (Cryogenic Rare Event Search with Superconducting Thermometers), installed at Laboratori Nazionali del Gran Sasso, is looking to directly detect dark matter particles scattering off CaWO$_4$ target nuclei in cryogenic detectors. Thanks to its energy threshold O(30 eV), CRESST-III is particularly suitable in probing sub-GeV DM masses. This contribution presents an overview of...
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Yi Tao (Sun Yat-sen University)10/11/2026, 13:40Invited Presentation
The PandaX-4T experiment, a multi-tonne liquid xenon time projection chamber at the China Jinping Underground Laboratory, searches for dark matter through WIMP-induced nuclear recoils. In this talk, We will present the latest WIMP search results using the full-exposure data set of PandaX-4T. With improved signal reconstruction, detector calibration, and background modeling, new constraints on...
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Alexander Sushkov (Johns Hopkins University)10/11/2026, 14:00Invited Presentation
Spin-based searches for new fundamental particles and fields use spin ensembles as transducers that are sensitive to spin interactions with fields beyond the standard model. The Cosmic Axion Spin Precession Experiment (CASPEr) is one example. For such searches, the standard quantum limit on sensitivity scales with the inverse square root of the number of spins. Consequently, increasing the...
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Danho Ahn (INFN)10/11/2026, 14:20Invited Presentation
The QUAX (QUaerere AXion) experiment searches for axion dark matter in the 35–45 μeV mass range (8.5–11 GHz) using two complementary cavity haloscopes covering distinct mass regions, located at INFN laboratories in Legnaro and Frascati. This talk will mostly present the results and status of the LNL haloscope, which has already reached near-KSVZ sensitivity above 40 μeV [1]. This is based on a...
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Dora Maiello (Università di Padova, INFN Padova)10/11/2026, 14:40Invited Presentation
Cavity-based searches for wave-like dark matter require microwave resonators combining high quality factors to enhance sensitivity with wide frequency tunability to probe the largest possible range of candidate particle masses. This is particularly important at high frequencies, where the parameter space is largely unexplored due to the poor scaling of the expected signal with the cavity...
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Daniel Gavilan-Martin10/11/2026, 15:30Invited Presentation
Hypothetical light scalar particles trigger the superradiant instability around spinning black holes (BHs), causing clouds of scalars to grow around the BH. In the presence of sufficiently strong particle self-interactions (characterized by the decay constant $f$), scalars are ejected from BH orbits, resulting in coherent, non-relativistic emissions that continuously carry away the BH's...
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David Marsh (Stockholm University)10/11/2026, 15:50Invited Presentation
Axion relic pockets (ARPs) can form in cosmic phase transitions and comprise all of dark matter. The pocket interiors are filled by the false vacuum phase, stabilised against collapse by a hot, kinematically trapped axion gas: ARPs are balloons filled with relativistic axions. I will review the theory and phenomenology of ARPs, and report on recent progress in understanding their formation and...
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Erik Lentz (Pacific Northwest National Laboratory)10/11/2026, 16:10Oral Presentation
The axion, first proposed to resolve the unobserved-yet-expected CP violation in QCD, is an excellent candidate for wave-like dark matter. The most successful experimental technique to search for galactic axions thus far, the cavity haloscope, is limited in both scan speed and accessible axion mass range (or frequency range), particularly above 1.5 GHz. Next generation axion haloscopes will...
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Qing Lin (University of Science and Technology of China)10/11/2026, 16:25Oral Presentation
PandaX-4T is a multi-tonne liquid-xenon experiment searching for rare low-energy interactions, operating with a 3.7-tonne active target at the China Jinping Underground Laboratory (2400 m.w.e. overburden). In 2024, PandaX-4T reported the first indication of coherent elastic neutrino–nucleus scattering (CE𝜈NS) from solar B8 neutrinos using combined Run0 and Run1 data, with a significance of...
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Yue Meng (Shanghai Jiao Tong University)10/11/2026, 16:40Oral Presentation
PandaX is a series of liquid xenon experiments at the China Jinping Underground Laboratory. Following the successful operation of PandaX-4T, the collaboration is now advancing toward the next-generation PandaX-20T experiment, with a substantially enlarged target mass and further improvements in detector performance and background control.
PandaX-20T will introduce major upgrades in key...
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Igor Samsonov (UNSW)11/11/2026, 08:40Oral Presentation
Dark matter coupled to the Standard Model only through gravity is usually regarded as beyond the reach of laboratory searches. In models with large extra dimensions this expectation can be altered, since the short-distance gravitational potential is enhanced and scales as ($1/r^{1+n}$). I will discuss dark-matter scattering in Arkani-Hamed–Dimopoulos–Dvali scenarios, where exchange of...
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Sung Woo YOUN (IBS-DMAG)11/11/2026, 08:55Invited Presentation
The QCD axion is a compelling dark matter candidate motivated by the Peccei–Quinn solution to the strong CP problem. The IBS Dark Matter Axion Group (IBS-DMAG) searches for axion dark matter using cavity haloscopes, where axion–photon conversion is enhanced by strong magnetic fields and high-Q microwave resonators. In this talk, I will present recent IBS-DMAG results, highlighting the...
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Sara Diglio (SUBATECH/CNRS/In2p3)11/11/2026, 09:15Invited Presentation
The XENONnT experiment operates a dual-phase liquid xenon time projection chamber at the INFN Laboratori Nazionali del Gran Sasso, designed primarily to search for weakly interacting massive particles (WIMPs). Thanks to its ultra-low background rate and low energy threshold, XENONnT is also uniquely sensitive to a wide range of rare processes, including coherent elastic neutrino-nucleus...
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Lucas Puetter (ITP Heidelberg)11/11/2026, 09:35Invited Presentation
We investigate how scalar-mediated potentials with Lorentz-violating couplings to Standard Model fermions affect spectroscopic observables in atoms and highly charged ions. Suitable combinations of an ordinary scalar and a time-like component of a Lorentz violating vector coupling allow for a split into "matter" and "antimatter" couplings, at least in the non-relativistic limit. By considering...
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David Herbschleb (QUP, KEK)11/11/2026, 09:55Oral Presentation
Ultra-low mass axion-like particles are well-motivated dark matter candidates. The wave-like behaviour in the sub-eV mass range is leveraged for searches for this possibility via coupling to fermion spins. In the non-relativistic limit, spins experience this dark matter background as a minuscule pseudo-magnetic field that can be measured exploiting quantum sensing methods. Here, we explore a...
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Abaz Kryemadhi (Messiah University)11/11/2026, 10:40Invited Presentation
The Dark-photons & Axion-Like particles Interferometer (DALI) is a novel haloscope concept designed to search for axions and dark photons above 25 μeV using a large area magnetized phased array and a tunable Fabry–Pérot resonator. A proof-of-principle demonstrator operated at the Instituto de Astrofísica de Canarias has successfully validated the core DALI technologies and produced the first...
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Akira Miyazaki (Université Paris-Saclay (FR))11/11/2026, 11:00Invited Presentation
The QCD axion is a well-motivated hypothetical particle that simultaneously addresses the strong CP problem and constitutes a compelling cold dark matter candidate. The MADMAX experiment (Magnetized Disk and Mirror Axion Experiment) is designed to search for dark matter axions and similar particles (axion-like particles and dark photons) in the mass range of 40–400 μeV by boosting the...
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Alessio Rettaroli (INFN - LNF)11/11/2026, 11:20Invited Presentation
GravNet is an international collaboration developing a distributed network of quantum-enhanced haloscopes to search for light dark matter and high-frequency gravitational waves (HFGWs) in the MHz-GHz frequency range. By coherently combining time-synchronized resonant detectors, GravNet aims to significantly extend the sensitivity achievable with individual experiments. The collaboration...
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Hiroki Takeuchi (Kyoto University)11/11/2026, 11:40Oral Presentation
We report on a direct search for dark photon dark matter with the DOSUE-RR experiment in the mass range of 80–160 $\mu \rm{eV}/c^2$, corresponding to 19-38 GHz. Dark photon dark matter can convert into ordinary photons at a conducting surface, producing a narrow-band millimeter-wave signal whose frequency is determined by the dark photon mass. The experiment searches for this signal using a...
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Hajime Fukuda (University of Tokyo)12/11/2026, 09:00Oral Presentation
We propose a quantum error correction-like noise mitigation protocol for enhancing the sensitivity of wave-like dark matter searches with quantum sensors. Our protocol uses multiple sensors to mitigate the noise affecting each sensor individually, allowing for the suppression of excitation noise that is parallel to the dark matter signal. We demonstrate that our protocol can improve the...
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Jeremy Bourhill12/11/2026, 09:15Oral Presentation
Twisted, helical "anyon" cavity resonators support bulk electromagnetic modes with nonzero helicity, a chiral property arising from the net parallel or antiparallel alignment of the eigenmode’s electric and magnetic fields. This property allows a single, monochromatic mode to couple directly to dark matter axions and convert them into amplitude-modulation sidebands via the axion-photon chiral...
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Andrew Sonnenschein (Fermi National Accelerator Laboratory)12/11/2026, 09:30Invited Presentation
The Broadband Reflector Experiment for Axion Detection (BREAD) concept employs a novel coaxial dish antenna geometry to convert axions to photons in the background magnetic field of a large solenoid magnet. This detector geometry provides a scalable approach to detection of axions in mass ranges above the reach of the resonant cavity technique employed by the ADMX, HAYSAC and CAPP...
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Aaron Chou12/11/2026, 09:50Invited Presentation
Discovering the QCD axion will require a fleet of high-Q cavities, large magnets and cryostats, and background-free single photon detectors. In this talk, I will report on the successful operation of a novel dielectric cavity that is tunable over a 20% frequency range while maintaining high quality factor. Coupled with a qubit-based single microwave photon counter with similarly large...
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Prof. John Martinis (University of California Santa Barbara)12/11/2026, 10:40Plenary Presentation
In the span of four decades, quantum computation has evolved from an intellectual curiosity to a potentially realizable technology. I will describe my thesis work on macroscopic quantum tunneling and energy-level quantization that led to the Nobel Prize, as well as several other important experiments that advanced superconducting qubits.
Nevertheless, the path toward a full-stack scalable...
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Aaron Quiskamp` (UWA)12/11/2026, 11:20Invited Presentation
The ORGAN (Oscillating Resonant Group AxioN) Experiment is Australia's axion haloscope program, searching for high-mass axion dark matter through a collaboration spanning the University of Western Australia and Swinburne University of Technology. Data-taking campaigns to date have placed leading exclusion limits on axion-photon coupling across the 25–112 μeV mass range, and the collaboration...
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Bianca Giaccone12/11/2026, 11:40Invited Presentation
The SQMS Center develops state-of-the-art superconducting and quantum technologies for ultra-sensitive searches for physics beyond the Standard Model. By combining superconducting radio-frequency cavities with quantum devices, SQMS is pursuing a broad experimental program targeting axion and dark photon dark matter, high-frequency gravitational waves, and other weakly interacting particles....
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Jules COLAS12/11/2026, 13:20Invited Presentation
Cryogenic detectors are of great interest to search for the elusive signal induced by a light dark matter particle impinging inside a target material. Unfortunately, every cryogenic experiment with a very low energy threshold is limited by a low-energy excess background known as LEE whose origin is not totally understood to this date. The proposal of the TESSERACT collaboration is to bring...
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Junu Jeong (Stockholm University)12/11/2026, 13:40Invited Presentation
Plasma haloscopes offer a compelling methodology for probing higher-mass axions, particularly above 10 GHz---a parameter space strongly favored by recent post-inflationary cosmological simulations. Utilizing wire metamaterial resonators, the ALPHA collaboration is preparing for its Phase 1 run, with the first scientific run anticipated in early 2028, to target the 10 to 20 GHz frequency range....
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Tobias Schiffer (University of Bonn (DE))12/11/2026, 14:00Invited Presentation
The sun could be a large axion emitter and thus an interesting object to study for axion searches. The International AXion Observatory (IAXO), as a next-generation axion helioscope, aims exactly for that purpose. The experiment will host a $20\,\text{m}$ long magnet with eight magnet bores and will be able to follow the sun for 12 hours per day. Each magnet bore will be equipped with a...
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Kristof Schmieden (University of Bonn (DE))12/11/2026, 14:20Invited Presentation
The SUPerconducting AXion search experiment, SUPAX, is a new axion haloscope currently being built at the University of Bonn to search for axion and axion-like particle dark matter in the microwave regime. The experiment will operate inside a 12 T superconducting solenoid at a base temperature of about 10 mK and will employ tunable microwave cavities covering resonance frequencies from 2 GHz...
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Giacomo D'Amico12/11/2026, 14:40Invited Presentation
Axion-like particles (ALPs) are well-motivated extensions of the Standard Model that can induce photon–ALP oscillations in the presence of external magnetic fields. For very-high-energy (VHE) gamma rays, these oscillations may leave observable signatures in the spectra of astrophysical sources, such as energy-dependent flux fluctuations or spectral hardening at TeV energies.
We present a...
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Dionysios Antypas (University of Crete)12/11/2026, 15:25Oral Presentation
Axionlike dark matter may generate an oscillating pseudomagnetic field
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through its gradient coupling to fermion spins. We report on the results
of a recent search [1] for this interaction using a
radio-frequency $^{87}\mathrm{Rb}$ atomic magnetometer, whose Larmor
frequency is scanned to provide broadband sensitivity. The measurement
probes axionlike-particle (ALP) masses... -
Giacomo D'Amico12/11/2026, 15:40Oral Presentation
In the past decade, indirect searches for particle dark matter with gamma-ray experiments have placed stringent constraints on the annihilation cross section or decay lifetime across a wide range of dark matter masses. These limits depend critically on the astrophysical J factor, which encodes the dark matter distribution in the target and typically dominates the systematic uncertainty. As...
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ippei obata12/11/2026, 15:55Oral Presentation
In this talk, I will present a novel method for probing Majoron dark matter using optical interferometry, such as that employed in gravitational wave detectors. The Majoron is a (pseudo-) Nambu-Goldstone boson that arises when a Majorana neutrino mass term is generated through the spontaneous breaking of a global Lepton symmetry, and has been proposed as a viable dark matter candidate in our...
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Masahiro Kawasaki12/11/2026, 16:10Oral Presentation
We investigate the formation of dark matter primordial black holes (PBHs) from two types of axion-like fields. In the first scenario, an axion-like field plays the role of the inflaton. We study PBH formation in axion inflation with a bumpy potential using lattice simulations. In particular, we compute the power spectrum of curvature perturbations in the strong backreaction regime and show...
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Shunsuke Neda (Institute for Cosmic Ray Research, The University of Tokyo)12/11/2026, 16:25Oral Presentation
Non-topological solitons arising in theories beyond the Standard Model can generate sizable Poisson density fluctuations in the early Universe. If the solitons temporarily dominate the energy density, these fluctuations grow during the resulting early matter-dominated era and can collapse into primordial black holes (PBHs), providing a possible origin of dark matter. Previous studies of this...
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Dr Patrick Fitzpatrick (Department of Physics & Astronomy, University of New Hampshire)12/11/2026, 16:40Oral Presentation
The apparent fine-tunings of the Standard Model Higgs potential may be a consequence of its near-criticality. If its parameters are selected by an underlying mechanism that places the theory near criticality, then the scale of vacuum instability sets an upper bound on the Higgs mass. This reframes the hierarchy problem as a consequence of vacuum metastability and predicts new physics that...
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Prof. Anthony Williams (University of Adelaide)13/11/2026, 08:40Oral Presentation
The absence of signals in Dark Matter (DM) detection experiments to date motivates scenarios in which the leading detection signals are absent or suppressed. We examine two such cases, using the framework of Effective Field Theory.
i) Pseudoscalar-mediated dark matter: For fermionic DM that is coupled to Standard Model (SM) fermions via pseudoscalar interactions, the tree-level elastic...
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Prof. Marcin Badziak (University of Warsaw)13/11/2026, 08:55Oral Presentation
Axions can be produced thermally in the Early Universe leaving imprints in cosmological observables. I will discuss recent developments in the computation of the abundance of thermally produced axions and present improved cosmological constraints on axion interactions. Cosmology provides the strongest constraints to date on several axion couplings. Based on 2410.18186 and 2511.14864 and some...
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Leonardo Mariani (Bicocca)13/11/2026, 09:10Oral Presentation
We report the full sub-Kelvin characterization of the BAUSCIA high-frequency gravitational-wave antenna and the current status of its pilot science run. The detector is based on cryogenic Bulk Acoustic Wave resonators coupled to SQUID amplifiers for signal readout. An end-to-end characterization of the experimental chain, from the resonators to the DAQ, shows that resonator thermal noise...
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Dr Noah Kurinsky (SLAC National Accelerator Laboratory - Stanford University)13/11/2026, 09:25Plenary Presentation
Over the past few decades, searches for ‘classical’ WIMPS at masses in the 10 GeV - 1 TeV regime have matured and ruled out a broad set of supersymmetric models. Along with mature concepts for reaching the neutrino floor in this mass range, significant progress has been made in understanding how we closed the mass gap between the younger set of axion experiments and the conventional...
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Prof. Tony Gherghetta (University of Minnesota)13/11/2026, 10:30Invited Presentation
I will describe recent new perspectives on the QCD axion that go beyond the minimal picture, including the origin of the axion’s fundamental scale, how the underlying symmetry can be protected from quantum gravity, and mechanisms that modify the axion mass while still solving the strong CP problem. Together, these ideas can significantly redirect experimental search strategies and open...
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Gianluca Lamanna13/11/2026, 10:50Invited Presentation
The NA62 experiment at CERN is designed to measure the highly-suppressed decay $K^{+} \to \pi^{+}\nu\bar{\nu}$ and has collected a large sample of $K^+$ decays in flight during Run 1 (2016--2018) and Run 2 (2021--2026). Searches for the decay $K^{+}\rightarrow\pi^{+}X$ using data from 2016--2022, set upper limits on the branching ratio at the $10^{-11}$ level, constraining a broad range of...
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Prof. Nicole Bell (The University of Melbourne)13/11/2026, 11:10Oral Presentation
The capture of dark matter in stars provides a cosmic laboratory in which to study the nature of dark matter particles and their interactions under extreme conditions. We discuss the capture of dark matter in neutron stars and white dwarfs, and the heating caused by the subsequent thermalisation and annihilation of that dark matter. We find that most of the dark matter’s kinetic energy is...
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Paolo Salomone (The University of Chicago)13/11/2026, 11:25Oral Presentation
Weakly Interacting Massive Particles (WIMPs) are considered one of the most promising candidates for dark matter (DM) and could potentially be detected through their interactions with standard model particles.
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The DarkSide program has pioneered the development of two-phase argon time projection chambers (TPCs) for direct DM searches, employing low-radioactivity argon extracted from... -
Arthur Talarmin (CNRS - Institut Néel)13/11/2026, 11:40Oral Presentation
Haloscopes are sensitive detectors used for dark matter axion search in the microwave energy range. They rely on the axion to photon conversion in a static magnetic field, and its amplification by resonance with a cavity electromagnetic mode. While simple cylinder cavities working below 1 GHz can provide large volume detectors of typically a hundred liters or more (GrAHal-CAPP), searches at...
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