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Lucien Heurtier & Jamie McDonald19/01/2026, 11:20
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Louis Hamaide (Johannes Gutenberg Universität Mainz)19/01/2026, 11:30Talk (UK-APP one-day meeting)
Many well theoretically motivated models of ultralight dark matter are expected to give rise to feeble oscillatory forces on macroscopic objects. Optically trapped sensors have high force sensitivies but have remained relatively unexplored in this context. In this talk we propose a new, tunable, optically trapped sensor specifically designed to detect such forces. Our design features a...
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Jason Arakawa (University of Delaware)19/01/2026, 12:00Talk (UK-APP one-day meeting)
In a broad class of theories, the accumulation of ultralight dark matter (ULDM) with particles of mass $10^{-22}~\textrm{eV} < m_{\phi} < 1~\textrm{eV}$ leads to the formation of long-lived bound states known as boson stars. When the ULDM exhibits self-interactions, prodigious bursts of energy carried by relativistic bosons are released from collapsing boson stars in bosenova explosions. We...
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Xiran Bai (Yale University)19/01/2026, 13:30Talk (UK-APP one-day meeting)
Axions are well-motivated dark matter candidates originally proposed to resolve the strong CP problem in quantum chromodynamics. In this talk, I present recent results from the Haloscope At Yale Sensitive To Axion Cold Dark Matter (HAYSTAC) experiment, which searches for axion dark matter using a tunable microwave cavity coupled to a quantum squeezed state receiver. HAYSTAC has scanned axion...
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Emilie Hertig (University of Cambridge)19/01/2026, 14:00Talk (UK-APP one-day meeting)
False vacuum decay (FVD) is at the heart of many open questions in cosmology and fundamental physics including, for example, eternal inflation, baryon asymmetry, and Higgs stability. Semiclassical lattice simulations have recently been proposed as a way of describing the phenomenon in real time. These numerical methods will be complemented by upcoming tabletop experiments based on cold-atom...
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Tobias Ortmann (Max-Planck-Institut für Physik)19/01/2026, 14:30Talk (UK-APP one-day meeting)
The Relic Axion Detector Exploratory Setup (RADES) collaboration works on the development of new techniques for axion searches. Axions are hypothetical pesudoscalar pseudoNambu-Goldstone bosons that appear as part of the solution to the the strong CP problem of QCD. At the same time they could also be the answer to one of the most puzzling questions on cosmology, the Dark Matter problem.
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Usama Syed Aqeel (University of Nottingham)19/01/2026, 15:00Talk (UK-APP one-day meeting)
We investigate how matter density distributions affect thin-wall bubble formation in the asymmetron mechanism, a scalar–tensor theory with a universal coupling to matter and explicit symmetry-breaking, and analyse the stability of its metastable state. We show that the screening mechanism of the asymmetron inside dense objects induces a surface tension associated with the boundary of the...
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Jiacheng Shi19/01/2026, 16:00Talk (UK-APP one-day meeting)
The axion is a well-motivated dark matter candidate that was originally proposed to solve the Strong CP problem. The talk presents the development of a dielectric Fabry-Perot cavity haloscope within the Imperial College Quantum enhanced Particle Astrophysics (QuEPA) project. Our approach is optimised to search for axion dark matter in the 125–250 µeV mass range (30–60 GHz) via photon...
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Dr Jeremiah Mitchell19/01/2026, 16:30Talk (UK-APP one-day meeting)
Atom interferometry utilizes matter-wave quantum interference. Different quantum states of an ultracold atom ensemble follow different free-fall trajectories through spacetime and experience the spatial and temporal variations of the gravitational potential. Variations in the gravitational field are encoded in the resulting matter-wave interference pattern. With the precise control of quantum...
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Jamie McDonald20/01/2026, 09:50
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Ruben Saakyan20/01/2026, 10:00Talk (main workshop)
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TIffany Harte20/01/2026, 10:30
Arrays of atoms in optical lattices offer a powerful platform to perform experimental simulation of complex quantum systems. The range of accessible physics can be extended further by augmenting the system with individually-controllable optical tweezers.I will describe a new experimental platform based on ultracold strontium in a hybrid optical lattice/tweezer potential, and will outline some...
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Dr Jeremiah Mitchell20/01/2026, 11:30
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Ohkyung Kwon (University of Chicago and Cardiff University)20/01/2026, 12:00Talk (main workshop)
We present a science case for the QUEST experiment at Cardiff University as a probe of the ground state of gravitational entanglement. The foundations of quantum mechanics have been tested with exceptional levels of rigor, mathematically and experimentally. However, the theoretical framework in which the mathematical formalism is constructed presumes a classical, definite space-time as its...
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Hartmut Grote20/01/2026, 14:00
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Sofia Qvarfort20/01/2026, 14:30
Testing modified gravity is essential for probing physics beyond general relativity and for constraining light scalar fields motivated by dark energy. In this talk, I will outline theory calculations which show how levitated cavity optomechanical systems operated in high vacuum can function as sensitive quantum probes of short-range deviations from Newtonian gravity. Focusing on Yukawa-type...
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Giovanni Barontini21/01/2026, 09:30
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Dr Jason Arakawa (University of Delaware)21/01/2026, 10:00
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Prof. Cecilia Levy (University at Albany, SUNY)21/01/2026, 10:30Talk (main workshop)
The LUX-ZEPLIN (LZ) experiment uses a dual-phase xenon time-projection chamber designed to search for rare interactions between dark matter and ordinary matter. In this talk, I present LZ’s latest results using an expanded exposure and improved background modeling, yielding the most stringent constraints to date on spin-independent WIMP–nucleon and spin-dependent WIMP–neutron scattering down...
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Ed Daw21/01/2026, 11:30
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Bin Xu (KIAS)21/01/2026, 12:00
The nature of dark matter (DM) remains one of the most pressing open questions in fundamental physics. Among the viable candidates, ultra-light bosonic dark matter such as axions and dark photons can manifest as coherent, wave-like fields that naturally couple to photons. In this talk, I present quantum-enhanced approaches to detect such signals by exploiting tools from quantum information...
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Clare Burrage21/01/2026, 14:00
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Jack Devlin21/01/2026, 14:30Talk (main workshop)
The toolkit of quantum technologies developed in atomic, molecular and optical physics are ideally suited to enhance the search for dark matter axions with masses above ~40 µeV. I will present an overview of a new experimental effort under construction at Imperial College, developing technologies to detect DFSZ axions with masses above 120 µeV. We plan to use a large mode area Fabry-Perot...
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Ben Jones21/01/2026, 15:00Talk (main workshop)
Determining the nature of the neutrino mass is an extremely difficult technological problem that appears likely to require unconventional solutions. To this end, our group has been developing single-molecule fluorescence imaging based sensors to tag the individual Ba2+ ions produced in the decay of xenon-136 through integrated photonic chips with organic sensing monolayers. Such structures...
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Joseph Formaggio22/01/2026, 09:30
Many analogies exist between neutrino physics and optics because the neutrino is a nearly massless particle whose feeble environmental interactions permit coherent quantum effects. However, it is only relatively recently that we have begun to explore the potential of quantum phenomena in neutrino physics, with neutrino oscillations and coherent elastic neutrino-nucleus scattering as prominent...
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Tim Langen22/01/2026, 10:00
Molecules are emerging as powerful platforms for precision measurement science, offering unique sensitivity for high-resolution spectroscopy and tests of fundamental symmetries. These experiments probe energy scales and interactions that complement searches at high-energy collider facilities, opening new avenues for discovering physics beyond the Standard Model in previously unexplored...
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Jamie McDonald (University of Manchester)22/01/2026, 10:30
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Wouter Van De Pontseele22/01/2026, 11:30
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Silke Weinfurtner22/01/2026, 12:00
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Animesh Datta (University of Warwick)22/01/2026, 14:00Talk (main workshop)
Proposed theories of harmonizing gravity and quantum mechanics at low energies suggest novel features such as fluctuations in the spacetime metric and collapse of massive quantum superpositions. How can these features be probed experimentally?
We have recently shown how high-precision tabletop laser interferometers can distinguish different classes of spacetime fluctuations as characterized...
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Steven Worm22/01/2026, 14:30
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Andrew Geraci22/01/2026, 15:00
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Manuel Meyer22/01/2026, 15:30Talk (main workshop)
Cryogenic transition edge sensors (TESs) are single photon detectors featuring excellent energy resolution below 10% and high quantum efficiency at optical and near-infrared wavelengths. If black-body backgrounds can be suppressed to sufficiently low levels, such detectors would be ideally suited for experiments searching for photon-axion conversion at these wavelengths such as...
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Takis Kontos23/01/2026, 09:30
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Elizabeth Leason23/01/2026, 10:00
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Tom Krokotsch (Universität Hamburg)23/01/2026, 10:30Talk (main workshop)
Exploring the vast spectrum of high-frequency gravitational waves (HFGWs) will require a variety of experimental strategies. Among the most promising detectors are electromagnetic resonators like microwave cavities and lumped-element circuits placed in large electromagnetic fields. Such detectors will always respond electromagnetically (Gertsenshtein effect) and deform mechanically at the same...
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Krisztian Peters23/01/2026, 11:30
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Kristof Schmieden23/01/2026, 12:00
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Jonathan Gosling (Imperial College London)Poster (main workshop)
The axion, as well as being a proposed solution to the strong CP problem, is a well-motivated candidate for dark matter [1]. The Quantum Enhanced Particle Astrophysics (QuEPA) project at Imperial College London looks to detect axions with a microwave cavity and trapped electrons. Towards this goal, a dielectric Fabry-Perot cavity has been developed as a dark matter haloscope to convert axions...
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Muhammad Omer KhanPoster (main workshop)
Seismic and suspension thermal noise set fundamental limits on the low-frequency sensitivity of ground-based gravitational-wave detectors. The aim of this work was to develop a Python-based numerical framework capable of modelling these noise sources in a manner consistent with published noise sensitivity budgets for Advanced LIGO and other ground-based detectors. Transfer-function models were...
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Jonathan Tinsley (University of Liverpool)Poster (main workshop)
Long-baseline atom interferometers based on the ultranarrow optical clock transition of strontium are currently being developed for fundamental physics by several consortia, including the US-UK collaboration MAGIS-100 and AION in the UK. These novel quantum sensors operate at the intersection of atom interferometry and optical clocks and aim to build and operate a 100-metre baseline atom...
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He ZhangPoster (main workshop)
The electron in a Penning trap dark matter detection experiment is part of the Quantum Enhanced Particle Astrophysics (QuEPA) project at Imperial College London. The experiment aims to detect axion dark matter using a single electron confined in a cryogenic Penning trap. Microwave photons produced in the axion dark matter converter can be absorbed by the trapped electron, driving cyclotron...
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TBD (University of Manchester)
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Dr Seb JonesPoster (main workshop)
The observation of neutrino oscillations provides proof of non-zero neutrino masses. However, these same neutrino oscillation experiments do not provide information on the absolute scale of these masses, which remain unknown. The neutrino masses may be accessed via measurement of the shape of the tritium beta-decay energy spectrum with a particularly sensitive technique known as Cyclotron...
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Rahul Vijay Bhagat (Birla Institute of Technology and Science Pilani, Hyderabad Campus)Poster (main workshop)
We investigate the logarithmic form of $f(Q,T)$ gravity with two different choices of matter Lagrangian such as: $\mathcal{L}_m = p$ and $\mathcal{L}_m = -\rho$. The parameters of the model has been constrained using Cosmic Chronometers (CC) in combination with DES-SN5YR and Pantheon$^+$ Type Ia supernova datasets. We have observed that the deceleration parameter shows a smooth transition...
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Annora SundararajanPoster (main workshop)
The axion addresses two open questions: the dark matter problem, and the CP problem. It is a hypothetical new particle arising from the Peccei Quinn solution to strong CP conservation. It is feebly interacting, non-baryonic and low mass in nature, making it a compelling dark matter candidate. Sensitive direct searches for axion dark matter called haloscopes involve converting axions into...
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Sanjeeda Sultana (Amity University Kolkata)Poster (main workshop)
We investigate a modified geometric gravity theory within the framework of symmetric teleparallelism, wherein gravitation is governed by the non-metricity scalar $Q$. In this context, we propose and analyze an exponential model given by $f(Q) = Q + \eta_1 Q_0 \left(1 - e^{-\eta_2 \sqrt{Q/Q_0}}\right)$, which enables a smooth and theoretically consistent deviation from General Relativity. This...
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Dr Jason Arakawa (University of Delaware)
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Horacio Septien-Gonzalez (Imperial College London)Poster (main workshop)
Ultracold molecules offer a platform for tabletop tests of fundamental physics, including precision measurements of the electron’s electric dipole moment (eEDM), where heavy polar molecules provide greatly enhanced sensitivity compared to atoms. Such experiments are interferometric in nature, making long interrogation times essential for improved sensitivity. This can be achieved either by...
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Simeng LiPoster (main workshop)
The electron electric dipole moment (eEDM) is one of the most sensitive probes for physics beyond the Standard Model (SM). While the SM predicts an almost vanishing eEDM, many beyond-SM theories anticipate values several orders of magnitude larger. Improving measurement sensitivity can therefore both provide a stringent test of the SM and help discriminate between competing beyond-SM theories....
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