• DOI:10.1088/1361-6455/aaa2cf
• Corpus ID: 119225715

Effects of cavity–cavity interaction on the entanglement dynamics of a generalized double Jaynes–Cummings model

@article{Pandit2016EffectsOC,
  title={Effects of cavity–cavity interaction on the entanglement dynamics of a generalized double Jaynes–Cummings model},
  author={Mahasweta Pandit and Sreetama Das and Sudipto Singha Roy and Himadri S. Dhar and Ujjwal Sen},
  journal={Journal of Physics B: Atomic, Molecular and Optical Physics},
  year={2016},
  volume={51}
}

• Mahasweta Pandit, Sreetama Das, +2 authors U. Sen
• Published 4 December 2016
• Physics
• Journal of Physics B: Atomic, Molecular and Optical Physics

We consider a generalized double Jaynes–Cummings model consisting of two isolated two-level atoms, each contained in a lossless cavity that interact with each other through a controlled photon-hopping mechanism. We analytically show that at low values of such a mediated cavity–cavity interaction, the temporal evolution of entanglement between the atoms, under the effects of cavity perturbation, exhibits the well-known phenomenon of entanglement sudden death (ESD). Interestingly, for moderately large interaction values, a complete preclusion of ESD is achieved, irrespective of its value in the initial atomic state. Our results provide a model to sustain entanglement between two atomic qubits, under the adverse effect of cavity induced perturbation, by introducing a non-intrusive inter-cavity photon exchange that can be physically realized through cavity-QED setups in contemporary experiments.