Quantum engineering of photon states with entangled atomic ensembles

Details Quantum engineering of photon states with entangled atomic ensembles Quantum engineering of photon states with entangled atomic ensembles

2007-04-04

arxiv.org/abs/0704.0641v2

Physics

Quantum Physics

6 pages, 3 figures

Scientific paper

We propose and analyze a new method to produce single and entangled photons which does not require cavities. It relies on the collective enhancement of light emission as a consequence of the presence of entanglement in atomic ensembles. Light emission is triggered by a laser pulse, and therefore our scheme is deterministic. Furthermore, it allows one to produce a variety of photonic entangled states by first preparing certain atomic states using simple sequences of quantum gates. We analyze the feasibility of our scheme, and particularize it to: ions in linear traps, atoms in optical lattices, and in cells at room temperature.

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