Near-quantum-limited haloscope search for dark-photon dark matter enhanced by a high- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math> superconducting cavity-Reference-Cited by-同舟云学术

Near-quantum-limited haloscope search for dark-photon dark matter enhanced by a high- Q superconducting cavity

Published:2024-05-24 Issue:9 Volume:109 Page:
ISSN:2470-0010
Container-title:Physical Review D
language:en
Short-container-title:Phys. Rev. D

Author:

Kang Runqi¹²³,Jiao Man¹⁴^ORCID,Tong Yu¹²,Liu Yang⁵,Zhong Youpeng⁶⁵^ORCID,Cai Yi-Fu⁷⁸^ORCID,Zhou Jingwei¹²³^ORCID,Rong Xing¹²³,Du Jiangfeng¹²³⁴^ORCID

Affiliation:

1. CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China

2. CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

3. Hefei National Laboratory, Hefei 230088, China

4. Institute of Quantum Sensing and School of Physics, Zhejiang University, Hangzhou 310027, China

5. International Quantum Academy, Shenzhen 518048, China

6. Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen, China

7. Deep Space Exploration Laboratory/School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China

8. CAS Key Laboratory for Researches in Galaxies and Cosmology/Department of Astronomy, School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China

Abstract

We report new experimental results on the search for dark photons based on a near-quantum-limited haloscope equipped with a superconducting cavity. The loaded quality factor of the superconducting cavity is 6×105, so that the expected signal from dark-photon dark matter can be enhanced by more than one order compared to a copper cavity. A Josephson parametric amplifier with a near-quantum-limited noise temperature has been utilized to minimize the noise during the search. Furthermore, a digital acquisition card based on field programmable gate arrays has been utilized to maximize data collection efficiency with a duty cycle being 100%. This work has established the most stringent constraints on dark photons at around 26.965 μeV. In the future, our apparatus can be extended to search for other dark matter candidates, such as axions and axionlike particles, and scrutinize new physics beyond the Standard Model.

Published by the American Physical Society

2024

Funder

Chinese Academy of Sciences

National Key Research and Development Program of China

National Natural Science Foundation of China

Fundamental Research Funds for Central Universities of the Central South University

Higher Education Discipline Innovation Project

China Postdoctoral Science Foundation

USTC Center for Micro- and Nanoscale Research and Fabrication

Innovation Program for Quantum Science and Technology

Anhui Initiative in Quantum Information Technologies