Thermal entanglement in a double Jaynes–Cummings model
Evgeny K. Bashkirov, Башкиров Е. К, Maria O. Guslyannikova, Гуслянникова М.О. · Physics of Wave Processes and Radio Systems · 2020
In this paper, we have investigated the entanglement dynamics between two initially entangled qubits interacting with two independent thermal cavities modes in the framework of resonant double Jaynes–Cummings model. We obtain the exact solution for the model under consideration and derive the time dependence of the atom-atom negativity. Results reveal that for entangled atoms the initial atomic quantum correlations can partially restore its original values for a finite interval of time, even for relatively high cavity temperatures.