Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2012-03-07
Pis'ma ZhETF 95, 457-461 (2012)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, no figures, JETP Letters style, version accepted in JETP Letters
Scientific paper
We discuss quantum electrodynamics emerging in the vacua with anisotropic scaling. Systems with anisotropic scaling were suggested by Horava in relation to the quantum theory of gravity. In such vacua the space and time are not equivalent, and moreover they obey different scaling laws, called the anisotropic scaling. Such anisotropic scaling takes place for fermions in bilayer graphene, where if one neglects the trigonal warping effects the massless Dirac fermions have quadratic dispersion. This results in the anisotropic quantum electrodynamics, in which electric and magnetic fields obey different scaling laws. Here we discuss the Heisenberg-Euler action and Schwinger pair production in such anisotropic QED
Katsnelson Mikhail I.
Volovik Grigori E.
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