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The axion offers a well-motivated solution to two fundamental questions in modern physics: the strong CP problem and the dark matter mystery. Cavity haloscopes, exploiting resonant enhancement of photon signals, provide the most sensitive…

Instrumentation and Detectors · Physics 2024-06-04 SungWoo Youn , Junu Jeong , Yannis K. Semertzidis

The axion haloscope is the currently most sensitive method to probe the vanishingly small coupling of this prominent Dark Matter candidate to photons. To scan a sizeable axion Dark Matter parameter space, the cavities that make up the…

Antiferromagnetically doped topological insulators (A-TI) are among the candidates to host dynamical axion fields and axion-polaritons; weakly interacting quasiparticles that are analogous to the dark axion, a long sought after candidate…

High Energy Physics - Phenomenology · Physics 2019-09-25 David J. E. Marsh , Kin-Chung Fong , Erik W. Lentz , Libor Šmejkal , Mazhar N. Ali

We present the design and the sensitivity reach of the Qubit-based Light Dark Matter detection experiment. We propose the novel two-chip design to reduce signal dissipation, with quantum parity measurement to enhance single-phonon detection…

High Energy Physics - Phenomenology · Physics 2025-12-24 Xuegang Li , Yuxiang Liu , Jing Shu , Ningqiang Song , Yidong Song , Junhua Wang , Yue-Liang Wu , Tiantian Zhang , Yu-Feng Zhou

We demonstrate a superconducting (SC) microwave (mw) cavity that can accelerate the dark matter search by maintaining superconductivity in a high DC magnetic field. We used high-temperature superconductor (HTSC) yttrium barium copper oxide…

Instrumentation and Detectors · Physics 2019-02-25 Danho Ahn , Dojun Youm , Ohjoon Kwon , Woohyun Chung , Yannis K. Semertzidis

We report on the results from a search for dark matter axions with the HAYSTAC experiment using a microwave cavity detector at frequencies between 5.6-5.8$\, \rm Ghz$. We exclude axion models with two photon coupling…

We report the first experimental results obtained with the new haloscope of the QUAX experiment located at Laboratori Nazionali di Frascati of INFN (LNF). The haloscope is composed of a OFHC Cu resonant cavity cooled down to about 30 mK and…

Axion haloscope detectors use microwave cavities permeated by a magnetic field to resonate photons that are converted from axions due to the inverse Primakoff effect. The sensitivity of a detector is proportional to the form factor of the…

Instrumentation and Detectors · Physics 2018-01-23 I. Stern , N. Sullivan , D. Tanner

We report the results of an axion dark matter search over an axion mass range of 9.39-9.51 ${\mu}$eV. A flux-driven Josephson parametric amplifier (JPA) was added to the cryogenic receiver chain. A system noise temperature of as low as 200…

From generation to generation, the maximum RF frequency and sampling rate of the integrated data converters in RF system-on-chip (RFSoC) family devices from Xilinx increases significantly. With the integrated digital mixers and up and down…

Instrumentation and Methods for Astrophysics · Physics 2023-09-19 Chao Liu , Zeeshan Ahmed , Shawn W. Henderson , Ryan Herbst , Larry Ruckman

We discuss axion dark matter detection via two mechanisms: spontaneous decays and resonant conversion in neutron star magnetospheres. For decays, we show that the brightness temperature signal, rather than flux, is a less ambiguous measure…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-15 Richard A. Battye , Bjoern Garbrecht , Jamie I. McDonald , Francesco Pace , Sankarshana Srinivasan

Recent developments in x-ray science provide methods to probe deeply embedded mesoscale grain structures and spatially resolve them using dark field x-ray microscopy (DFXM). Extending this technique to investigate weak diffraction signals…

Axions, originally proposed to solve the strong CP problem of quantum chromodynamics, emerge now as leading candidates of WISP dark matter. The rich phenomenology associated to the light and stable QCD axion can be described as an effective…

In portable, 3-D, or ultra-fast ultrasound (US) imaging systems, there is an increasing demand to reconstruct high quality images from limited number of data. However, the existing solutions require either hardware changes or…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Yeo Hun Yoon , Jong Chul Ye

In 1978, Wilczek and Weinberg theoretically discovered a new boson-the Axion-which is the coherent oscillation of the $\theta$ field in QCD. Its existence can solve multiple fundamental questions including the strong CP problem of QCD and…

Latest deep learning methods for object detection provide remarkable performance, but have limits when used in robotic applications. One of the most relevant issues is the long training time, which is due to the large size and imbalance of…

Robotics · Computer Science 2021-06-30 Elisa Maiettini , Giulia Pasquale , Lorenzo Rosasco , Lorenzo Natale

The Axion Dark Matter eXperiment (ADMX) is the first axion haloscope search to reach DFSZ sensitivity in any mass range for the QCD axion. The QCD axion is a well-motivated dark matter candidate that additionally solves the strong CP…

High Energy Physics - Experiment · Physics 2024-08-08 Thomas Braine

The dark (or hidden) photon is a massive U(1) gauge boson theorized as a dark force mediator and as a dark matter candidate. Dark photons can be detected with axion cavity haloscopes by probing for a power excess caused by the dark photon's…

High Energy Physics - Phenomenology · Physics 2021-12-01 Sumita Ghosh , Liz Ruddy , Michael J. Jewell , Alexander F. Leder , Reina H. Maruyama

New front-end electronics including ASICs and FPGA boards are under development for the ATLAS Monitored Drift Tube (MDT) detector to handle the large data rates and harsh environment expected at high-luminosity LHC runs. A mobile Data…

Instrumentation and Detectors · Physics 2022-11-23 Yuxiang Guo , Xueye Hu , Thomas Schwarz , Bing Zhou , Junjie Zhu

The dark photon is a well motivated candidate for the dark matter which comprises most of the mass of our visible Universe, leading to worldwide experimental and observational efforts towards its discovery. A primary tool in this search is…

High Energy Physics - Experiment · Physics 2026-04-01 Yuan-Hann Chang , Cheng-Wei Chiang , Hien Thi Doan , Nick Houston , Jinmian Li , Tianjun Li , Lina Wu , Xin Zhang