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Tunable Axion Plasma Haloscopes
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
Stockholm University, Faculty of Science, Department of Physics.
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Number of Authors: 52019 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 123, no 14, article id 141802Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2019. Vol. 123, no 14, article id 141802
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-175694DOI: 10.1103/PhysRevLett.123.141802ISI: 000488514800004OAI: oai:DiVA.org:su-175694DiVA, id: diva2:1370206
Available from: 2019-11-14 Created: 2019-11-14 Last updated: 2019-11-14Bibliographically approved

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Lawson, MatthewMillar, Alexander J.Pancaldi, MatteoWilczek, Frank
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)Nordic Institute for Theoretical Physics (Nordita)
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