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Article
Report number	arXiv:1209.2593 ; CERN-PH-TH-2012-240
Title	Holographic models for undoped Weyl semimetals
Author(s)	Gursoy, Umut (CERN) ; Jacobs, Vivian (Utrecht U.) ; Plauschinn, Erik (Utrecht U. ; Padua U.) ; Stoof, Henk (Utrecht U.) ; Vandoren, Stefan (Utrecht U.)
Publication	2013
Imprint	13 Sep 2012
Number of pages	64
Note	Comments: 64 pages, 19 figures
In:	JHEP 04 (2013) 127
DOI	10.1007/JHEP04(2013)127
Subject category	Particle Physics - Theory
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.
Copyright/License	Preprint: © 2012-2024 CERN (License: CC-BY-3.0)

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