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Vacuum Radiation in $z=2$ Lifshitz QED

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arxiv 2105.13848 v1 pith:E4IVOLFK submitted 2021-05-28 hep-th hep-ph

R. Bufalo , T. Cardoso e Bufalo This is my paper · ORCID
classification hep-thhep-ph
keywords lifshitzvacuumradiationanalyzeanisotropicbehaviorchargecherenkov
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abstract

We discuss in this paper the vacuum Cherenkov radiation in the $z=2$ Lifshitz electrodynamics. The improved ultraviolet behavior, in terms of higher spatial derivatives, and the renormalizable couplings, due to the time-space anisotropic scaling, present in the Lifshitz setting are extremely important in fulfilling the physical constraints in order to this vacuum process to happen. We evaluate in details the instantaneous rate of energy loss for a charge, and also analyze the emission of very soft photons in this framework.

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Cited by 1 Pith paper

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  1. Vacuum Cherenkov radiation for nonminimal dimension-5 Lorentz violation

    hep-ph 2025-08 conditional novelty 6.0 of 10

    Isotropic dimension-5 Lorentz violation in fermions is constrained to below 1e-18 GeV^-1 (proton, m-type) and 3e-28 GeV^-1 (proton, a-type) by the absence of vacuum Cherenkov radiation in cosmic rays.

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