Zero-temperature localization in a sub-Ohmic spin-boson model investigated by an extended hierarchy equation of motion
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DOI: 10.1103/physrevb.95.214308
Abstract: With a decomposition scheme for the bath correlation function, the hierarchy equation of motion (HEOM) is extended to the zero-temperature sub-Ohmic spin-boson model, providing a numerically accurate prediction of quantum dynamics. As a dynamic approach,… read more here.
Keywords: spin boson; equation motion; hierarchy equation; sub ohmic ... See more keywords
Uncovering nonperturbative dynamics of the biased sub-Ohmic spin-boson model with variational matrix product states
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DOI: 10.1103/physrevb.96.115427
Abstract: We study the dynamics of the biased sub-Ohmic spin-boson model by means of a time-dependent variational matrix product state (TDVMPS) algorithm. The evolution of both the system and the environment is obtained in the weak-… read more here.
Keywords: spin boson; dynamics biased; spin; sub ohmic ... See more keywords