Efficient simulation of strong system-environment interactions.

By J. Prior, Alex W. Chin, Susana F. Huelga, Martin Bodo Plenio. Physical Review Letters, 2010

381 citations recorded by the source corpus.

Multicomponent quantum systems in strong interaction with their environment are receiving increasing attention due to their importance in a variety of contexts, ranging from solid state quantum information processing to the quantum dynamics of biomolecular aggregates. Unfortunately, these systems are difficult to simulate as the system-bath interactions cannot be treated perturbatively and standard approaches are invalid or inefficient. Here we combine the time-dependent density matrix renormalization group with techniques from the theory of orthogonal polynomials to provide an efficient method for simulating open quantum systems, including spin-boson models and their generalizations to multicomponent systems.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/a6c994d803d26fab09d1501f349e7366754562df

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Delocalized excitons in natural light-harvesting complexes (2018, result): “Calculations (Chin et al., 2013) based on density matrix renormalization group technique (Prior et al., 2010) also support this result and suggest the contribution of significant nonequilibrium effects.”
Dynamics of non-Markovian open quantum systems (2015, background): “Another alternative is to map the original problem of a system coupled to a set of environment harmonic oscillators into a one-dimensional structure, where the system is coupled to a chain of transformed oscillators (Bulla et al., 2008; Prior et al., 2010).”
Exact mapping between system-reservoir quantum models and semi-infinite discrete chains using orthogonal polynomials (2010, methodology): “[8] successfully used a t-DMRG approach for a two-spin system where each spin was in contact with an oscillator environment with arbitrarily complex spectral densities.”