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On consistency of hydrodynamic approximation for chiral media

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arxiv 1402.3587 v3 pith:UHKT374S submitted 2014-02-14 hep-th

classification hep-th
keywords chiralliquidsasymmetricconsidercurrentelectromagneticinstabilitiesmedia
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abstract

We consider chiral liquids, that is liquids consisting of massless fermions and right-left asymmetric. In such media, one expects existence of electromagnetic current flowing along an external magnetic field, associated with the chiral anomaly. The current is predicted to be dissipation-free. We consider dynamics of chiral liquids, concentrating on the issues of possible instabilities and infrared sensitivity. Instabilities arise, generally speaking, already in the limit of vanishing electromagnetic constant, $\alpha_{el}\to 0$. In particular, liquids with non-vanishing chiral chemical potential might decay into right-left asymmetric states containing vortices.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Chiral Waves on the Fermi-Dirac Sea: Quantum Superfluidity and the Axial Anomaly

    hep-th 2019-09 conditional novelty 6.0 of 10

    The axial anomaly implies a gapless chiral density wave that makes massless-fermion systems behave as quantum superfluids, exactly in D=2 and conditionally in D=4.

  2. Contribution of the chiral vortical effect to the evolution of the hypermagnetic field and the matter-antimatter asymmetry in the early Universe

    hep-ph 2019-08 conditional novelty 6.0 of 10

    A nonzero primordial vorticity seeds a hypermagnetic field from zero in the symmetric phase; the chiral magnetic effect then amplifies it and converts lepton into baryon asymmetry.

  3. Scattering Amplitudes and Resonant Processes in QED with Chiral Chemical Potential and Chiral Magnetic Conductivity

    hep-ph 2026-06 unverdicted novelty 5.0 of 10

    QED scattering amplitudes in a chiral medium with constant μ5 and b0 exhibit resonant behavior in multiple processes, with computed rates for 1→2 processes determining widths of fermion and photon states.

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