We theoretically study the stability of a Weyl semimetal against strong long-range Coulomb interactions. We consider a lattice model for a time-reversal symmetry broken Weylsemimetal with two nodes, and take into account the 1/r Coulomb interactions between the bulk electrons. Based on the U(1) lattice gauge theory, we investigate the system from the strong coupling limit. It is shown that spatial inversion (parity) symmetry of the system is spontaneously broken in the strong coupling limit, and a Weylsemimetal with broken time- reversal and inversion symmetries, which is different from the noninteractingone, survives in the strong coupling limit.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2015 Apr 28|
|Event||International Workshop on Dirac Electrons in Solids 2015 - Tokyo, Japan|
Duration: 2015 Jan 14 → 2015 Jan 15
ASJC Scopus subject areas
- Physics and Astronomy(all)