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Axion detection wit...
Axion detection with phonon-polaritons revisited
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- Marsh, David J.E. (author)
- Department of Physics, King's College London, Strand, London WC2R 2LS, United Kingdom, Strand
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- McDonald, Jamie I. (author)
- Centre for Cosmology, Particle Physics and Phenomenology (CP3), Universitè Catholique de Louvain, Chemin du cyclotron 2, Louvain-la-Neuve B-1348, Belgium, Chemin du cyclotron 2
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- Millar, Alexander J. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Nordiska institutet för teoretisk fysik (Nordita),NORDITA SU; The Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, SE-10691 Stockholm, Sweden, AlbaNova; Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, 10691 Stockholm, Sweden, Roslagstullsbacken 23; Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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- Schütte-Engel, Jan (author)
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA; Illinois Center for Advanced Studies of the Universe, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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(creator_code:org_t)
- American Physical Society (APS), 2023
- 2023
- English.
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In: Physical Review D. - : American Physical Society (APS). - 2470-0010 .- 2470-0029. ; 107:3
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- In the presence of a background magnetic field, axion dark matter induces an electric field and can thus excite phonon-polaritons in suitable materials. We revisit the calculation of the axion-photon conversion power output from such materials, accounting for finite volume effects, and material losses. Our calculation shows how phonon-polaritons can be converted to propagating photons at the material boundary, offering a route to detecting the signal. Using the dielectric functions of GaAs, Al2O3, and SiO2, a fit to our loss model leads to a signal of lower magnitude than previous calculations. We demonstrate how knowledge of resonances in the dielectric function can directly be used to calculate the sensitivity of any material to axion dark matter. We argue that a combination of low losses encountered at O(1) K temperatures and near future improvements in detector dark count allow one to probe the QCD axion in the mass range ma≈100 meV. This provides further impetus to examine novel materials and further develop detectors in the THz regime. We also discuss possible tuning methods to scan the axion mass.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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