Solutions to sign problems in lattice Yukawa models

Journal Article

We prove that sign problems in the traditional approach to some lattice Yukawa models can be completely solved when fermions are formulated using fermion bags and bosons are formulated in the worldline representation. We prove this within the context of two examples of three-dimensional models, symmetric under U L(1)×U R(1)×Z 2(parity) transformations, one involving staggered fermions and the other involving Wilson fermions. We argue that these models have interesting quantum phase transitions that can now be studied using Monte Carlo methods. © 2012 American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Chandrasekharan, S

Published Date

  • July 3, 2012

Published In

Volume / Issue

  • 86 / 2

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.86.021701

Citation Source

  • Scopus