Single-atom as a macroscopic entanglement source

Abstract

We discuss the generation of a macroscopic entangled state in a single atom cavity-QED system. The three-level atom in a cascade configuration interacts dispersively with two classical coherent fields inside a doubly resonant cavity. We show that a macroscopic entangled state between these two cavity modes can be generated under large detuning conditions. The entanglement persists even under the presence of cavity losses.

Accepted by Phys. Rev. A

References in corpus (12)

• Experimental quantum teleportation
• Quantum information with continuous variables
• Inseparability criterion for continuous variable systems
• Strong-driving-assisted multipartite entanglement in cavity QED
• Entanglement conditions for two-mode states
• Inseparability criteria for bipartite quantum states
• Characterizing the entanglement of bipartite quantum systems
• Field squeeze operators in optical cavities with atomic ensembles
• Entangled light pulses from single cold atoms
• Generation of two-mode nonclassical states and a quantum phase gate operation in trapped ion cavity QED
• Coherent generation of EPR-entangled light pulses mediated by a single trapped atom
• One-step generation of high-quality squeezed and EPR states in cavity QED

Cited by in corpus (7)

• Two-mode single-atom laser as a source of entangled light
• Memory effect induced macroscopic-microscopic entanglement
• Entanglement created by spontaneously generated coherence
• Output entanglement and squeezing of two-mode fields generated by a single atom
• Entanglement generation in double-$\Lambda$ system
• Atom-photon, two-mode entanglement and two-mode squeezing in the presence of cross-Kerr nonlinearity
• Interference-induced enhancement of field entanglement in a microwave-driven V-type single-atom laser