Matches in SemOpenAlex for { <https://semopenalex.org/work/W2031143790> ?p ?o ?g. }
- W2031143790 abstract "A reduced dynamics representation is introduced which is tailored to a hierarchical, Mori-chain type representation of a bath of harmonic oscillators which are linearly coupled to a subsystem. We consider a spin-boson system where a single effective mode is constructed so as to absorb all system-environment interactions, while the residual bath modes are coupled bilinearly to the primary mode and among each other. Using a cumulant expansion of the memory kernel, correlation functions for the primary mode are obtained, which can be suitably approximated by truncated chains representing the primary-residual mode interactions. A series of reduced-dimensional bath correlation functions is thus obtained, which can be expressed as Fourier-Laplace transforms of spectral densities that are given in truncated continued-fraction form. For a master equation which is second order in the system-bath coupling, the memory kernel is re-expressed in terms of local-in-time equations involving auxiliary densities and auxiliary operators." @default.
- W2031143790 created "2016-06-24" @default.
- W2031143790 creator A5058249123 @default.
- W2031143790 creator A5072638903 @default.
- W2031143790 creator A5084366827 @default.
- W2031143790 date "2012-10-12" @default.
- W2031143790 modified "2023-10-18" @default.
- W2031143790 title "Non-Markovian reduced dynamics based upon a hierarchical effective-mode representation" @default.
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