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Open Quantum Systems Decoherence

Continuous and time-discrete non-Markovian system-reservoir interactions: Dissipative coherent quantum feedback in Liouville space

arXiv

Authors: Oliver Kästle, Regina Finsterhoelzl, Andreas Knorr, Alexander Carmele

Year

2020

Paper ID

19415

Status

Preprint

Abstract Read

~2 min

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Abstract

Based on tensor network realizations of path integrals reducing exponential memory scaling to polynomial efficiency and a Liouville space implementation of a time-discrete quantum memory, we investigate a quantum system simultaneously exposed to two structured reservoirs. For this purpose, we employ a numerically exact quasi-2D tensor network combining both diagonal and off-diagonal system-reservoir interactions with a twofold memory for continuous and discrete retardation effects. As a possible example, we study the non-Markovian dynamical interplay between discrete photonic feedback and structured acoustic phonon modes, resulting in emerging inter-reservoir correlations and long-living population trapping within an initially-excited two-level system.

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Based on tensor network realizations of path integrals reducing exponential memory scaling to polynomial efficiency and a Liouville space implementation of a time-discrete...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.05071 [2] arXiv https://arxiv.org/abs/2011.05071 [3] Publisher https://arxiv.org/abs/2011.05071

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