Efficient steady-state solver for hierarchical quantum master equations.
J Chem Phys
; 147(4): 044105, 2017 Jul 28.
Article
en En
| MEDLINE
| ID: mdl-28764354
ABSTRACT
Steady states play pivotal roles in many equilibrium and non-equilibrium open system studies. Their accurate evaluations call for exact theories with rigorous treatment of system-bath interactions. Therein, the hierarchical equations-of-motion (HEOM) formalism is a nonperturbative and non-Markovian quantum dissipation theory, which can faithfully describe the dissipative dynamics and nonlinear response of open systems. Nevertheless, solving the steady states of open quantum systems via HEOM is often a challenging task, due to the vast number of dynamical quantities involved. In this work, we propose a self-consistent iteration approach that quickly solves the HEOM steady states. We demonstrate its high efficiency with accurate and fast evaluations of low-temperature thermal equilibrium of a model Fenna-Matthews-Olson pigment-protein complex. Numerically exact evaluation of thermal equilibrium Rényi entropies and stationary emission line shapes is presented with detailed discussion.
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01-internacional
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MEDLINE
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En
Revista:
J Chem Phys
Año:
2017
Tipo del documento:
Article
País de afiliación:
China