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Efficient simulation of non-Markovian system-environment interaction

Author(s)
Rosenbach, Robert; Huelga, Susana F; Plenio, Martin B; Cerrillo Moreno, Javier; Cao, Jianshu
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Abstract
In this work, we combine an established method for open quantum systems—the time evolving density matrix using orthogonal polynomials algorithm—with the transfer tensors formalism, a new tool for the analysis, compression and propagation of non-Markovian processes. A compact propagator is generated out of sample trajectories covering the correlation time of the bath. This enables the investigation of previously inaccessible long-time dynamics with linear effort, such as those ensuing from low temperature regimes with arbitrary, possibly highly structured, spectral densities. We briefly introduce both methods, followed by a benchmark to prove viability and combination synergies. Subsequently we illustrate the capabilities of this approach at the hand of specific examples and conclude our analysis by highlighting possible further applications of our method.
Date issued
2016-02
URI
http://hdl.handle.net/1721.1/108515
Department
Massachusetts Institute of Technology. Department of Chemistry
Journal
New Journal of Physics
Citation
Rosenbach, Robert, Javier Cerrillo, Susana F Huelga, Jianshu Cao, and Martin B Plenio. “Efficient Simulation of Non-Markovian System-Environment Interaction.” New J. Phys. 18, no. 2 (February 8, 2016): 023035. © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
Version: Final published version
ISSN
1367-2630

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