Monte Carlo sampling of complex actions in extended state spaces.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.045315
Abstract: Path integrals with complex actions are encountered for many physical systems ranging from spin- or mass-imbalanced atomic gases and graphene to quantum chromodynamics at finite density to the nonequilibrium evolution of quantum systems. Many computational… read more here.
Keywords: extended state; monte carlo; complex actions; complex langevin ... See more keywords
Convergent series for polynomial lattice models with complex actions
Sign Up to like & getrecommendations! Published in 2019 at "Modern Physics Letters A"
DOI: 10.1142/s0217732319502432
Abstract: Lattice models with complex actions are important for the understanding of matter at finite densities, but not accessible by the standard Monte Carlo techniques due to the sign problem. Here, we propose a new approach… read more here.
Keywords: series polynomial; models complex; convergent series; complex actions ... See more keywords