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Stuttgart 2012 – wissenschaftliches Programm

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SYPC: Symposium From Atoms to Photonic Circuits: Integrating Quantum Optics and Optical Communication

SYPC 1: From Atoms to Photonic Circuits: Integrating Quantum Optics and Optical Communication 1

SYPC 1.5: Vortrag

Donnerstag, 15. März 2012, 12:00–12:15, V47.01

Towards optical quantum logic: Source, interface and memoryJerome Dilley, Peter B. R. Nisbet-Jones, •Annemarie Holleczek, Oliver Barter, and Axel Kuhn — Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU

We present a highly efficient, deterministic source of indistinguishable photons which is based on a vacuum stimulated Raman process (V-STIRAP) in a strongly coupled atom-cavity system [1]. This device operates intermittently for periods of up to 100µ s, with a single-photon repetition rate of 1 MHz, and an efficiency of greater than 65% [2]. The single photons are not only produced on demand but also with total control of their shape and intrinsic phase. In addition, we present a scheme how a single photon can be reabsorbed by the emitting atom as this is the key to a single-photon quantum memory [3].

[1] A. Kuhn and D. Ljunggren, Contem. Phys. 51, 298 (2010).

[2] P. B. R. Nisbet-Jones, et al., New J. Phys. 13, 103036 (2011).

[3] J. Dilley, et al., arXiv 1105.1699 (2011).

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