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PT-symmetric two-level open quantum systems: information theoretic facets
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DOI：10.1088/1402-4896/ae64ba.png)
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Abstract
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The theory of a two-level eta-Hermitian Hamiltonian with PT symmetry is reviewed and extended to include open system dynamics. A first-principles derivation of the generalized Gorini-Kossakowski-Sudarshan-Lindblad master equation appropriate for a PT- symmetric Hamiltonian is presented. Inspired by a simple light-matter interaction open system model, information theoretic quantities like a non-Markovian witness and fidelity are calculated for the PT- symmetric Hamiltonian, and the results are compared with their corresponding two-level Hermitian counterparts. The nature of entanglement between two PT- symmetric and Hermitian open quantum systems is calculated, and the contrast observed.
Keywords:
non-Hermitian quantum mechanics
open quantum systems
PT-symmetry
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