期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.141802
关键词
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资金
- European Research Council [742104]
- U.S. Department of Energy [DE-SC0012567]
- Swedish Research Council [335-2014-7424]
- Deutsche Forschungsgemeinschaft [SFB 1258]
- European Union [H2020-MSCA-ITN-2015/674896]
We propose a new strategy for searching for dark matter axions using tunable cryogenic plasmas. Unlike current experiments, which repair the mismatch between axion and photon masses by breaking translational invariance (cavity and dielectric haloscopes), a plasma haloscope enables resonant conversion by matching the axion mass to a plasma frequency. A key advantage is that the plasma frequency is unrelated to the physical size of the device, allowing large conversion volumes. We identify wire metamaterials as a promising candidate plasma, wherein the plasma frequency can be tuned by varying the interwire spacing. For realistic experimental sizes, we estimate competitive sensitivity for axion masses of 35-400 mu eV, at least.
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