Fermion bag approach to Hamiltonian lattice field theories in continuous time


Journal Article

© 2017 American Physical Society. We extend the idea of fermion bags to Hamiltonian lattice field theories in the continuous time formulation. Using a class of models we argue that the temperature is a parameter that splits the fermion dynamics into small spatial regions that can be used to identify fermion bags. Using this idea we construct a continuous time quantum Monte Carlo algorithm and compute critical exponents in the 3d Ising Gross-Neveu universality class using a single flavor of massless Hamiltonian staggered fermions. We find η=0.54(6) and ν=0.88(2) using lattices up to N=2304 sites. We argue that even sizes up to N=10,000 sites should be accessible with supercomputers available today.

Full Text

Duke Authors

Cited Authors

  • Huffman, E; Chandrasekharan, S

Published Date

  • December 1, 2017

Published In

Volume / Issue

  • 96 / 11

Electronic International Standard Serial Number (EISSN)

  • 2470-0029

International Standard Serial Number (ISSN)

  • 2470-0010

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.96.114502

Citation Source

  • Scopus