Düsseldorf 2007 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 59: Quanteneffekte (Lichtstreuung II)
Q 59.1: Vortrag
Donnerstag, 22. März 2007, 14:00–14:15, 5E
Generating EPR-entangled radiation with a beam of atoms — •SUSANNE PIELAWA1,2, GIOVANNA MORIGI1, DAVID VITALI3, and LUIZ DAVIDOVICH4 — 1Dept. de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Spain — 2ICFO-Institute of Photonic Sciences, E-08860 Castelldefels (Barcelona), Spain — 3Dipt. di Fisica, Universita' di Camerino, I-62032 Camerino, Italy — 4Inst. de Fisica, Universidade Federal do Rio de Janeiro, Brasil
We propose a scheme for generating two-mode squeezing in resonators using a beam of atoms with statistical arrival times. A classical field drives the atoms inside the cavity transversally, saturating the dipole transition and thereby setting it on resonance with two non-degenerate cavity modes. By suitably preparing the atoms initial state, the stationary state after a sufficient atomic statistics is a two-mode squeezed state, whose degree of entanglement is controlled by the external parameters of atomic beam and pumping field. The scheme can be realized in the parameter regimes of present experiments with microwave resonators [1,2]. In the outlook we discuss possible extensions to the optical regime. [1]J. M. Raimond, M. Brune, and S. Haroche, Rev. Mod. Phys. 73, 565-582 (2001). [2]H. Walther, B.T.H. Varcoe, B.-G. Englert and T. Becker, Rep. Prog. Phys. 69, 1325-1382 (2006).