Unruh effect in vacua with anisotropic scaling: Applications to multilayer graphene

M. I. Katsnelson, G. E. Volovik, M. A. Zubkov

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We extend the calculation of the Unruh effect to the universality classes of quantum vacua obeying topologically protected invariance under anisotropic scaling r→br, t→bzt. Two situations are considered. The first one is related to the accelerated detector which detects the electron-hole pairs. The second one is related to the system in external electric field, when the electron-hole pairs are created due to the Schwinger process. As distinct from the Unruh effect in relativistic systems (where z=1) the calculated radiation is not thermal, but has properties of systems in the vicinity of quantum criticality. The vacuum obeying anisotropic scaling can be realized, in particular, in multilayer graphene with the rhombohedral stacking. Opportunities of the experimental realization of the Unruh effect in this situation are discussed.

Original languageEnglish
Pages (from-to)36-55
Number of pages20
JournalAnnals of Physics
Volume336
DOIs
StatePublished - Sep 2013
Externally publishedYes

Keywords

  • Bilayer
  • Graphene
  • Monolayer
  • Schwinger pair creation
  • Unruh effect

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