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A purified input-output pseudomode model for structured open quantum systems
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A full understanding of open quantum systems requires the characterization of both system and environmental properties. However, the complexity of the environmental statistics in the presence of strong system-bath hybridization and long memory effects usually prevents effective non-perturbative methods from going beyond the analysis of the reduced system dynamics. Here we present a model consisting of purified auxiliary bosonic modes to describe, alongside properties of the system, the dynamics of environmental observables for bosonic baths prepared in non-Gaussian initial states. We numerically exemplify this method by simulating non-Markovian multi-photon transfer processes on a coupled cavity waveguide system in the large time delay regime.
Forward citations
Cited by 3 Pith papers
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WaveguideQED.jl: An Efficient Framework for Simulating Non-Markovian Waveguide Quantum Electrodynamics
WaveguideQED.jl is an efficient, open-source, time-bin simulator for waveguide QED with up to two photons, including full photonic states and non-Markovian feedback.
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Markovian Embeddings of Non-Markovian Open System Dynamics
Different Markovian embedding schemes for non-Markovian open quantum systems are shown to be different unravelings of the same Gaussian bath self-energy, related by Bogoliubov transformations.
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Tensor network methods for non-perturbative dynamics of open quantum systems
A review that organizes six numerically exact tensor-network methods for open quantum systems into a shared formalism, compares their convergence behavior, and lists software implementations.
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