Phase-controlled atom-photon entanglement in a three-level V-type atomic system via spontaneously generated coherence

Abstract

We investigate the dynamical behavior of the atom-photon entanglement in a V-type three-level quantum system using the atomic reduced entropy. It is shown that an atom and photons are entangled at the steady-state; however disentanglement can also be achieved in an especial condition. It is demonstrated that in the presence of quantum interference induced by spontaneous emission, the reduced entropy and the atom-photon entanglement are phase-dependent. Non-stationary solution is also obtained when the quantum interference due to the spontaneous emission is completely included.

16 pages, 7 figures

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Cited by in corpus (4)

• Validating and controlling quantum enhancement against noise by motion of a qubit
• Controllable quantum correlations of two-photon states generated using classically driven three-level atoms
• All entangled states are quantum coherent with locally distinguishable bases
• Atom-photon, two-mode entanglement and two-mode squeezing in the presence of cross-Kerr nonlinearity