Two-mode single-atom laser as a source of entangled light

Abstract

A two-mode single-atom laser is considered, with the aim of generating entanglement in macroscopic light. Two transitions in the four-level gain medium atom independently interact with the two cavity modes, while two other transitions are driven by control laser fields. Atomic relaxation as well as cavity losses are taken into account. We show that this system is a source of macroscopic entangled light over a wide range of control parameters and initial states of the cavity field.

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• Dependence of the evolution of the cavity radiation of a coherently pumped correlated emission laser on dephasing and phase fluctuation
• Entanglement generation in double-$\Lambda$ system
• Quantum correlations among optical and vibrational quanta
• Thresholdless dressed-atom laser in a photonic band-gap material
• Atom-photon, two-mode entanglement and two-mode squeezing in the presence of cross-Kerr nonlinearity
• Coherently prepared nondegenerate Y-shaped four-level correlated emission laser: A source of tripartite entangled light
• Changes in the statistical and quantum features of the cavity radiation of a two-photon coherent beat laser due to phase fluctuation
• Interference-induced enhancement of field entanglement in a microwave-driven V-type single-atom laser
• Long-time correlated quantum dynamics of phonon cooling
• Effect of phase fluctuation and dephasing on the dynamics of entanglement generation in a correlated emission laser