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arXiv · 1209.2593

Holographic models for undoped Weyl semimetals

Umut Gursoy·Vivian Jacobs·Erik Plauschinn·Henk Stoof·Stefan Vandoren
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Abstract

We continue our recently proposed holographic description of single-particle correlation functions for four-dimensional chiral fermions with Lifshitz scaling at zero chemical potential, paying particular attention to the dynamical exponent z = 2. We present new results for the spectral densities and dispersion relations at non-zero momenta and temperature. In contrast to the relativistic case with z = 1, we find the existence of a quantum phase transition from a non-Fermi liquid into a Fermi liquid in which two Fermi surfaces spontaneously form, even at zero chemical potential. Our findings show that the boundary system behaves like an undoped Weyl semimetal.

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Umut Gursoy, Vivian Jacobs, Erik Plauschinn, Henk Stoof, Stefan Vandoren. 2013-04-03. Holographic models for undoped Weyl semimetals. https://doi.org/10.1007/jhep04(2013)127

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