Scheme for generating a sequence of single photons of alternating polarisation

Details Scheme for generating a sequence of single photons of alternating polarisation Scheme for generating a sequence of single photons of alternating polarisation

2006-03-09

arxiv.org/abs/quant-ph/0603083v1

J. Mod. Opt., 54:1569-1580, 2007

Physics

Quantum Physics

7 pages, 4 figures

Scientific paper

Single-photons of well-defined polarisation that are deterministically generated in a single spatio-temporal field mode are the key to the creation of multi-partite entangled states in photonic networks. Here, we present a novel scheme to produce such photons from a single atom in an optical cavity, by means of vacuum-stimulated Raman transitions between the Zeeman substates of a single hyperfine state. Upon each transition, a photon is emitted into the cavity, with a polarisation that depends on the direction of the Raman process.

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