Proposal to detect axion dark matter via chiral magnetic effect in Weyl semimetals, claiming observable femto-amp signals in 1 cm² samples at 10 T that can probe couplings below stellar cooling bounds.
Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals
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abstract
We present a microscopic theory of diffusive magnetotransport in Weyl metals and clarify its relation to chiral anomaly. We derive coupled diffusion equations for the total and axial charge densities and show that chiral anomaly manifests as a magnetic-field-induced coupling between them. We demonstrate that a universal experimentally-observable consequence of this coupling in magnetotransport in Weyl metals is a quadratic negative magnetoresistance, which will dominate all other contributions to magnetoresistance under certain conditions.
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hep-ph 1years
2026 1verdicts
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Probing Axion Dark Matter via the Chiral Magnetic Effect in Zero-Bias Weyl Semimetals
Proposal to detect axion dark matter via chiral magnetic effect in Weyl semimetals, claiming observable femto-amp signals in 1 cm² samples at 10 T that can probe couplings below stellar cooling bounds.