Chaotic spin-photonic states in an open periodically modulated quantum cavity

• URL: http://arxiv.org/abs/2005.07582v2
• Date: Mon, 26 Oct 2020 21:40:00 GMT
• Title: Chaotic spin-photonic states in an open periodically modulated quantum cavity
• Authors: I.I. Yusipov, S.V. Denisov, M.V. Ivanchenko
• Abstract summary: We consider quantum chaotic state emerging in a leaky cavity. A single spin, when placed inside the cavity and coupled to the mode, can moderate transitions between regular and chaotic regimes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: When applied to dynamical systems, both classical and quantum, time periodic modulations can produce complex non-equilibrium states which are often termed 'chaotic`. Being well understood within the unitary Hamiltonian framework, this phenomenon is less explored in open quantum systems. Here we consider quantum chaotic state emerging in a leaky cavity, when an intracavity photonic mode is coherently pumped with the intensity varying periodically in time. We show that a single spin, when placed inside the cavity and coupled to the mode, can moderate transitions between regular and chaotic regimes -- that are identified by using quantum Lyapunov exponents -- and thus can be used to control the degree of chaos. In an experiment, these transitions can be detected by analyzing photon emission statistics.

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