Hannover 2010 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 21: Poster I
Q 21.53: Poster
Tuesday, March 9, 2010, 16:00–19:00, Lichthof
Atom-Photon-Interfaces - Single-Photon Generation and Shaping — •Peter Nisbet1, Jerome Dilley1, Gunnar Langfahl-Klabes1, Genko Vasilev2, Daniel Ljunggren3, and Axel Kuhn1 — 1Clarendon Laboratory, Oxford, UK — 2Dept. of Phys., Sofia University, Bulgaria — 3Dept. of Appl. Physics, KTH Stockholm, Sweden
Single atoms coupled to high-finesse cavities provide a unique way to deterministically generate a stream of single photons of MHz bandwidth [1]. Atom-cavity schemes are also in principle reversible, this would allow quantum state mapping between static (atom-cavity) and flying (photon) qubits which could be scaled up into a quantum network.
We report on the latest status of a strong coupling atom-cavity system based on 87Rb. Atoms are loaded into the cavity (F=125000, L=90 µ m) using an atomic fountain which gives rise to millisecond interaction times.
We also show a tweak to deliver single photons of arbitrary temporal shape. For any possible shape we derive an analytic expression for the driving laser pulse [2].
[1] Hijlkema, M. et al. Nature Physics 3, 253 (2007)
[2] Vasilev, G. et al. arXiv:0907.0761v1