Cluster truncated Wigner approximation in strongly interacting systems
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2018.06.001
Abstract: We present a general method by which linear quantum Hamiltonian dynamics with exponentially many degrees of freedom is replaced by approximate classical nonlinear dynamics with the number of degrees of freedom (phase space dimensionality) scaling… read more here.
Keywords: wigner approximation; space; method; phase space ... See more keywords
Cluster truncated Wigner approximation for bond-disordered Heisenberg spin models
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.054204
Abstract: We present a comprehensive numerical investigation of the cluster Truncated Wigner Approximation (cTWA) applied to quench dynamics in bond-disordered Heisenberg spin chains with power-law interactions. We find that cTWA yields highly accurate results over a… read more here.
Keywords: truncated wigner; disordered heisenberg; heisenberg spin; bond disordered ... See more keywords
Quantum corrections of the truncated Wigner approximation applied to an exciton transport model.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.042115
Abstract: We modify the path integral representation of exciton transport in open quantum systems such that an exact description of the quantum fluctuations around the classical evolution of the system is possible. As a consequence, the… read more here.
Keywords: wigner approximation; approximation; exciton transport; transport model ... See more keywords