Atom-atom entanglement in a not-resonant two-photon Tavis-Cummings model
Samara University, 34 Moskovskoe shosse Str., Samara 443086 Russia
* Corresponding author: email@example.com
Published online: 25 October 2019
The entanglement between two two-level atoms (qubits) interacting not-resonantly with a one mode of thermal field in a lossless cavity via effective degenerate two-photon transitions is investigated. Based on the exact solution for the time-dependent density matrix of the system under consideration, negativity is calculated as a measure of the entanglement of atoms. The influence of a detuning on the dynamics of entanglement of atoms for separable and entangled initial atomic states and thermal cavity state is investigated.
© The Authors, published by EDP Sciences, 2019
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