No sign problem in one-dimensional path integral Monte Carlo simulation of fermions: A topological proof. Academic Article uri icon


  • This paper shows that, in one dimension, due to its topology, a closed-loop product of short-time propagators is always positive, despite the fact that each antisymmetric free fermion propagator can be of either sign.

published proceedings

  • Phys Rev E

author list (cited authors)

  • Chin, S. A.

citation count

  • 0

complete list of authors

  • Chin, Siu A

publication date

  • March 2023