Future directions in the microwave cavity search for dark matter axions

被引:67
作者
Shokair, T. M. [1 ]
Root, J. [1 ]
Van Bibber, K. A. [1 ]
Brubaker, B. [2 ]
Gurevich, Y. V. [2 ]
Cahn, S. B. [2 ]
Lamoreaux, S. K. [2 ]
Anil, M. A. [3 ]
Lehnert, K. W. [3 ]
Mitchell, B. K. [3 ]
Reed, A. [3 ]
Carosi, G. [4 ]
机构
[1] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA
[2] Yale Univ, Dept Phys, New Haven, CT 06511 USA
[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[4] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94551 USA
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2014年 / 29卷 / 19期
基金
美国国家科学基金会;
关键词
Axion; dark matter; microwave cavity; superconductivity; Josephson parametric amplifiers; QUANTUM INTERFERENCE DEVICE; RADIOFREQUENCY-AMPLIFIER; COSMIC AXIONS; INVARIANCE; LIMITS; NOISE;
D O I
10.1142/S0217751X14430040
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The axion is a light pseudoscalar particle which suppresses CP-violating effects in strong interactions and also happens to be an excellent dark matter candidate. Axions constituting the dark matter halo of our galaxy may be detected by their resonant conversion to photons in a microwave cavity permeated by a magnetic field. The current generation of the microwave cavity experiment has demonstrated sensitivity to plausible axion models, and upgrades in progress should achieve the sensitivity required for a definitive search, at least for low mass axions. However, a comprehensive strategy for scanning the entire mass range, from 1-1000 mu eV, will require significant technological advances to maintain the needed sensitivity at higher frequencies. Such advances could include sub-quantum-limited amplifiers based on squeezed vacuum states, bolometers, and/or superconducting microwave cavities. The Axion Dark Matter eXperiment at High Frequencies (ADMX-HF) represents both a pathfinder for first data in the 20-100 mu eV range (similar to 5-25 GHz), and an innovation test-bed for these concepts.
引用
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页数:19
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