Coherent generation of EPR-entangled light pulses mediated by a single trapped atom

Giovanna Morigi; Jürgen Eschner; Stefano Mancini; David Vitali

doi:https://doi.org/10.1103/PhysRevA.73.033822

Coherent generation of EPR-entangled light pulses mediated by a single trapped atom

Giovanna Morigi, Jürgen Eschner, Stefano Mancini, David Vitali

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

29 Citations (Scopus)

Abstract

We show that a single, trapped, laser-driven atom in a high-finesse optical cavity allows for the quantum-coherent generation of entangled light pulses on demand. We report the detailed description of schemes for generating simultaneous and temporally separated pulse pairs, presented in [G. Morigi, Phys. Rev. Lett., 96, 023601 (2006)]. The mechanical effect of the laser excitation on the quantum motion of the cold trapped atom mediates the entangling interaction between two cavity modes and between the two subsequent pulses, respectively. The entanglement is of EPR-type, and its degree can be controlled through external parameters. At the end of the generation process the atom is decorrelated from the light field. Possible experimental implementations of the proposals are discussed. © 2006 The American Physical Society.

Original language	English
Article number	033822
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	73
DOIs	https://doi.org/10.1103/PhysRevA.73.033822
Publication status	Published - 10 Apr 2006

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title = "Coherent generation of EPR-entangled light pulses mediated by a single trapped atom",

abstract = "We show that a single, trapped, laser-driven atom in a high-finesse optical cavity allows for the quantum-coherent generation of entangled light pulses on demand. We report the detailed description of schemes for generating simultaneous and temporally separated pulse pairs, presented in [G. Morigi, Phys. Rev. Lett., 96, 023601 (2006)]. The mechanical effect of the laser excitation on the quantum motion of the cold trapped atom mediates the entangling interaction between two cavity modes and between the two subsequent pulses, respectively. The entanglement is of EPR-type, and its degree can be controlled through external parameters. At the end of the generation process the atom is decorrelated from the light field. Possible experimental implementations of the proposals are discussed. {\textcopyright} 2006 The American Physical Society.",

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AB - We show that a single, trapped, laser-driven atom in a high-finesse optical cavity allows for the quantum-coherent generation of entangled light pulses on demand. We report the detailed description of schemes for generating simultaneous and temporally separated pulse pairs, presented in [G. Morigi, Phys. Rev. Lett., 96, 023601 (2006)]. The mechanical effect of the laser excitation on the quantum motion of the cold trapped atom mediates the entangling interaction between two cavity modes and between the two subsequent pulses, respectively. The entanglement is of EPR-type, and its degree can be controlled through external parameters. At the end of the generation process the atom is decorrelated from the light field. Possible experimental implementations of the proposals are discussed. © 2006 The American Physical Society.

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