Controlling the quantum state of a single photon emitted from a single polariton
| Autor: | Stanojevic, Jovica, Parigi, Valentina, Bimbard, Erwan, Tualle-Brouri, Rosa, Ourjoumtsev, Alexei, Grangier, Philippe |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 84, 053830 (2011) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.84.053830 |
| Popis: | We investigate in detail the optimal conditions for a high fidelity transfer from a single-polariton state to a single-photon state and subsequent homodyne detection of the single photon. We assume that, using various possible techniques, the single polariton has initially been stored as a spin-wave grating in a cloud of cold atoms inside a low-finesse cavity. This state is then transferred to a single-photon optical pulse using an auxiliary beam. We optimize the retrieval efficiency and determine the mode of the local oscillator that maximizes the homodyne efficiency of such a photon. We find that both efficiencies can have values close to one in a large region of experimental parameters. Comment: 10 pages, 8 figures |
| Databáze: | arXiv |
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