A purified input-output pseudomode model for structured open quantum systems

• URL: http://arxiv.org/abs/2412.04264v1
• Date: Thu, 05 Dec 2024 15:47:10 GMT
• Title: A purified input-output pseudomode model for structured open quantum systems
• Authors: Pengfei Liang, Neill Lambert, Si Luo, Lingzhen Guo, Mauro Cirio,
• Abstract summary: 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.
• Score: 0.8901227918730564
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• Abstract: 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.

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