Generalized Bloch theorem and chiral transport phenomena

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Abstract

Bloch theorem states the impossibility of persistent electric currents in the ground state of nonrelativistic fermion systems. We extend this theorem to generic systems based on the gauged particle number symmetry and study its consequences on the example of chiral transport phenomena. We show that the chiral magnetic effect can be understood as a generalization of the Bloch theorem to a nonequilibrium steady state, similarly to the integer quantum Hall effect. On the other hand, persistent axial currents are not prohibited by the Bloch theorem and they can be regarded as Pauli paramagnetism of relativistic matter. An application of the generalized Bloch theorem to quantum time crystals is also discussed.

Original languageEnglish
Article number085011
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number8
DOIs
Publication statusPublished - 2015 Oct 7

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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