EPJ Web of Conferences (Jan 2019)

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

  • Guslyannikova Marya O.,
  • Bashkirov Eugene K.

DOI
https://doi.org/10.1051/epjconf/201922003018
Journal volume & issue
Vol. 220
p. 03018

Abstract

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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.