ArticleNanomaterials (Basel, Switzerland)2021
Accurate Truncations of Chain Mapping Models for Open Quantum Systems.
Article in Nanomaterials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- A mixed perturbative-nonperturbative treatment for strong light-matter interactions.Nanophotonics (Berlin, Germany) · 2024Article
- Advanced Nanomaterials for Quantum Technology, Sensor and Health Therapy Applications.Nanomaterials (Basel, Switzerland) · 2023Article
- Few-mode field quantization for multiple emitters.Nanophotonics (Berlin, Germany) · 2022Article
- A Theoretical Perspective on Molecular Polaritonics.ACS photonics · 2022Review
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2 authors.
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Abstract
The dynamics of open quantum systems are of great interest in many research fields, such as for the interaction of a quantum emitter with the electromagnetic modes of a nanophotonic structure. A powerful approach for treating such setups in the non-Markovian limit is given by the chain mapping where an arbitrary environment can be transformed to a chain of modes with only nearest-neighbor coupling. However, when long propagation times are desired, the required long chain lengths limit the utility of this approach. We study various approaches for truncating the chains at manageable lengths while still preserving an accurate description of the dynamics. We achieve this by introducing losses to the chain modes in such a way that the effective environment acting on the system remains unchanged, using a number of different strategies. Furthermore, we demonstrate that extending the chain mapping to allow next-nearest neighbor coupling permits the reproduction of an arbitrary environment, and adding longer-range interactions does not further increase the effective number of degrees of freedom in the environment.
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