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

Giovanna Morigi, Jürgen Eschner, Stefano Mancini, David Vitali

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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 languageEnglish
Article number033822
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume73
DOIs
Publication statusPublished - 10 Apr 2006

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