We considered a quantum model consisting of two effective two-level atoms interacting with a single-mode thermal cavity field through two-photon transitions. We explored the entanglement dynamics between two atoms, and studied the effect of the Stark shift on the entanglement. The results showed that for a separable initial atomic state the Stark shift enhances the amount of atom-atom entanglement induced by the thermal field. For entangled atomic state the Stark shift reduces the the atom-atom entanglement oscillations.

Date Published: 3 June 2019
PDF: 7 pages
Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 110660O (3 June 2019); doi: 10.1117/12.2523305

Published in SPIE Proceedings Vol. 11066:
Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling
Vladimir L. Derbov, Editor(s)