Quantum critical behavior in three dimensional lattice Gross-Neveu models

Published

Journal Article

We study quantum critical behavior in three dimensional lattice Gross-Neveu models containing two four-component massless Dirac fermions. We focus on two models with SU(2) flavor symmetry and either a Z2 or a U(1) chiral symmetry. Both models could not be studied earlier due to sign problems. We use the fermion bag approach which is free of sign problems and compute critical exponents at the phase transitions. We estimate ν=0.83(1), η=0.62(1), ηψ=0.38(1) in the Z2 and ν=0.849(8), η=0.633(8), ηψ=0.373(3) in the U(1) model. © 2013 American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Chandrasekharan, S; Li, A

Published Date

  • July 31, 2013

Published In

Volume / Issue

  • 88 / 2

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.88.021701

Citation Source

  • Scopus