期刊
PHYSICAL REVIEW D
卷 99, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.055010
关键词
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资金
- NSF [1806440]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1806440] Funding Source: National Science Foundation
Recently there has been a surge of new experimental proposals to search for ultralight axion dark matter with axion mass, m(a) less than or similar to 1 mu eV. Many of these proposals search for small oscillating magnetic fields induced in or around a large static magnetic field. Lately, there has been interest in alternate detection schemes which search for oscillating electric fields in a similar setup. In this paper, we explicitly solve Maxwell's equations in a simplified geometry and demonstrate that in this mass range, the axion-induced electric fields arc heavily suppressed by boundary conditions. Unfortunately, experimentally measuring axion induced electric fields is not feasible in this mass regime using the currently proposed setups with static primary fields. We show that at larger axion masses, induced electric fields are not suppressed, but boundary effects may still be relevant for an experiment's sensitivity. We then make a general argument about a generic detector configuration with a static magnetic field to show that the electric fields are always suppressed in the limit of large wavelength.
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