Related papers: Correlated and Critical Phenomena in Multipartite Quantum Non-Markovianity

Correlated and Critical Phenomena in Multipartite Quantum Non-Markovianity

URL: http://arxiv.org/abs/2406.14674v1
Date: Thu, 20 Jun 2024 18:53:40 GMT
Title: Correlated and Critical Phenomena in Multipartite Quantum Non-Markovianity
Authors: Ignacio González, Ángel Rivas,
Abstract summary: We study the dynamics of two two-level atoms in a resonant cavity as a function of their interatomic distance. We observe a critical behavior in the non-Markovianity in the form of a Markovian to non-Markovian transition at a finite distance.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We consider the problem of the general assessment of non-Markovianity in multipartite open quantum systems. To this end, we elaborate on a previously introduced non-Markovian measure to formulate a finite and additive quantifier with appropriate asymptotic behavior. We then study the dynamics of two two-level atoms in a resonant cavity as a function of their interatomic distance using an exact treatment. We observe a critical behavior in the non-Markovianity in the form of a Markovian to non-Markovian transition at a finite distance and a discontinuity in the limit of infinitely close atoms. Additionally, in this limit of highly correlated dynamics, non-Markovianity can emerge when the size of the system exceeds a critical threshold.

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