Solution to sign problems in half-filled spin-polarized electronic systems

Journal Article

We solve the sign problem in a particle-hole symmetric spin-polarized fermion model on bipartite lattices using the idea of fermion bags. The solution can be extended to a class of models at half filling but without particle-hole symmetry. Attractive Hubbard models with an odd number of fermion species can also be solved. Our solutions should allow us to study quantum phase transitions that have remained unexplored so far due to sign problems. © 2014 American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Huffman, EF; Chandrasekharan, S

Published Date

  • March 12, 2014

Published In

Volume / Issue

  • 89 / 11

Electronic International Standard Serial Number (EISSN)

  • 1550-235X

International Standard Serial Number (ISSN)

  • 1098-0121

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.89.111101

Citation Source

  • Scopus