Generation and purification of maximally-entangled atomic states in optical cavities

Abstract

We present a probabilistic scheme for generating and purifying maximally-entangled states of two atoms inside an optical cavity via no-photon detection in the output cavity mode, where ideal detectors may not be required. The intermediate mixed states can be continuously "filtered" so as to violate Bell inequalities in a parametrized manner. The scheme relies on an additional strong-driving field that yields unusual dynamics in cavity QED experiments, simultaneously realizing Jaynes-Cummings and anti-Jaynes-Cummings interactions.

4 pages and 3 figures

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• Exact results on decoherence and entanglement in a system of N driven atoms and a dissipative cavity mode
• Time-dependent Fröhlich transformation approach for two-atom entanglement generated by successive passage through a cavity
• Generating an entangled coherent state of two cavity modes in a three-level Λ- type atomic system
• Repulsive and attractive Casimir interactions in liquids
• Synthesis of maximally entangled mixed states and disentanglement in coupled Josephson charge qubits
• Optomechanical Entanglement between an Ion and an Optical Cavity Field
• Monitoring Entanglement Evolution and Collective Quantum Dynamics