Axion quasiparticles for axion dark matter detection
| Autor: | Mazhar N. Ali, Edward Hardy, Libor Šmejkal, J. Schütte-Engel, Alexander J. Millar, Francesca Chadha-Day, Kin Chung Fong, David J. E. Marsh, Sebastian Hoof, Akihiko Sekine |
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| Rok vydání: | 2021 |
| Předmět: |
Photon
axions Dark matter FOS: Physical sciences 01 natural sciences 7. Clean energy Condensed Matter - Strongly Correlated Electrons High Energy Physics - Phenomenology (hep-ph) Electric field Dispersion relation 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 010306 general physics Axion Spin-½ Physics Condensed Matter - Materials Science dark matter detectors dark matter theory Condensed Matter - Mesoscale and Nanoscale Physics Strongly Correlated Electrons (cond-mat.str-el) 010308 nuclear & particles physics dark matter experiments Materials Science (cond-mat.mtrl-sci) Astronomy and Astrophysics Magnetic field High Energy Physics - Phenomenology Quantum electrodynamics Quasiparticle |
| Zdroj: | Journal of Cosmology and Astroparticle Physics, 2021, Vol.2021(08), pp.066 [Peer Reviewed Journal] Journal of Cosmology and Astroparticles Physics Journal of Cosmology and Astroparticle Physics, 2021(8) Journal of Cosmology and Astroparticle Physics |
| Popis: | It has been suggested that certain antiferromagnetic topological insulators contain axion quasiparticles (AQs), and that such materials could be used to detect axion dark matter (DM). The AQ is a longitudinal antiferromagnetic spin fluctuation coupled to the electromagnetic Chern-Simons term, which, in the presence of an applied magnetic field, leads to mass mixing between the AQ and the electric field. The electromagnetic boundary conditions and transmission and reflection coefficients are computed. A model for including losses into this system is presented, and the resulting linewidth is computed. It is shown how transmission spectroscopy can be used to measure the resonant frequencies and damping coefficients of the material, and demonstrate conclusively the existence of the AQ. The dispersion relation and boundary conditions permit resonant conversion of axion DM into THz photons in a material volume that is independent of the resonant frequency, which is tuneable via an applied magnetic field. A parameter study for axion DM detection is performed, computing boost amplitudes and bandwidths using realistic material properties including loss. The proposal could allow for detection of axion DM in the mass range between 1 and 10 meV using current and near future technology. Comment: 78 pages + appendices, v2: reference list extended, added one more case to fig 23 |
| Databáze: | OpenAIRE |
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