Stuttgart 2012 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 54: Poster 3
Q 54.74: Poster
Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II
Spin-light entanglement in an optical cavity — •Hessam Habibian1,2, Stefano Zippilli1,2,3, and Giovanna Morigi1,2 — 1Universitat Autónoma de Barcelona, Spain — 2Universität des Saarlandes, Germany — 3Universitá degli Studi di Salerno, Italy
Photonic interfaces count on several successful implementations that make use of atomic ensembles [1]. The combination of atomic ensembles and optical resonators can provide further resources for quantum networks [2]. Here we study a system consisting of a periodic atomic array where the atoms couple with the mode of a high-finesse optical resonator and are driven by a laser. When the von-Laue condition is not satisfied, coherent scattering into the cavity mode is suppressed, and photons are pumped via inelastic scattering processes [3]. In this regime, the collective spin-wave modes and the cavity mode are effectively coupled in the low excitation limit. In this contribution we discuss how this coupling can be used in order to generate entanglement between the spin modes and the cavity mode.
[1] K. Hammerer, A.S. Sørensen, E.S. Polzik, Rev. Mod. Phys. 82, 041 (2010).
[2] I. Leroux, M.H. Schleier-Smith, V. Vuletic, Phys. Rev. Lett. 81, 021804 (2010); J.B. Brask, L. Jiang, A.V. Gorshkov, V. Vuletic, A.S. Sorensen, M.D. Lukin, Phys. Rev. A 81, 020303(R) (2010).
[3] H. Habibian, S. Zippilli, G. Morigi, Phys. Rev. A 84, 033829 (2011).