-
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....
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
Dr Jongkuk Kim (Kangwon National University)09/11/2026, 15:20Poster Presentation
In 2023, the Belle II Collaboration announced the observation of the
Go to contribution page
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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....
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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,...
Go to contribution page -
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...
Go to contribution page -
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),...
Go to contribution page -
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...
Go to contribution page -
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.
Go to contribution page
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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.\
Go to contribution page
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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)...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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”...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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.
Go to contribution page
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page -
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...
Go to contribution page
Choose timezone
Your profile timezone: