Atom-atom entanglement in a not-resonant two-photon Tavis-Cummings model

Marya O. Guslyannikova, Eugene K. Bashkirov, A. Naumov, A. Kalachev, A. Evlyukhin, S. Arakelyan
2019 EPJ Web of Conferences  
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
more » ... states and thermal cavity state is investigated.
doi:10.1051/epjconf/201922003018 fatcat:uwbrhzqtcvac3k2dgjg5cqyxsq