Dynamics for atoms successively passing a cavity in the presence of the initial atomic entanglement

International Conference of Young Scientists and Specialists "Optics-2015"

Bashkirov, E.K.^1 ; Mastyugin, M.S.^1

Physics Department, Samara State University, 1 Academician Pavlov Str., 443011, Russia^1

关键词: Atomic entanglement;    Density matrix;    Entangled state;    Exact solution;    High temperature;    Photon numbers;    Thermal cavity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/735/1/012026/pdf
DOI  :  10.1088/1742-6596/735/1/012026

来源: IOP

【 摘 要 】

We investigated the dynamics of entanglement between atoms successively passing a cavity and interact with a thermal cavity field. We considered the situation when atoms are initially prepared in a pure entangled state. Using the exact solution of density matrix evolution we calculated the negativity for different values of cavity mean photon numbers. We shown the possibility to save the initial atomic entanglement even for a thermal cavity field with relatively high temperature.