PoS - Proceedings of Science
Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Applications Beyond QCD
Numerical simulation of Dirac semimetals
V.V. Braguta, M.I. Katsnelson, A.Y. Kotov,* A. Nikolaev
*corresponding author
Full text: pdf
Pre-published on: February 03, 2017
Published on: March 24, 2017
Abstract
Dirac semimetals are recently discovered materials with low energy electronic
excitation spectrum similar to
the massless two favour 3+1 Dirac fermions. The interaction between
quasiparticles in Dirac semimetals
is instantaneous Coulomb with large effective coupling constant
$\alpha \sim 1$. In this report
we present results of study of the phase diagram of Dirac
semimetals within lattice simulation
with rooted staggered fermions. In particular, we calculate the chiral
condensate as a function
of effective coupling constant and Fermi velocity anisotropy and thus determine the position of
semimetal-insulator transition
in Dirac semimetals.
DOI: https://doi.org/10.22323/1.256.0243
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