Darmstadt 2008 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

A: Fachverband Atomphysik

A 18: Ultracold atoms II (jointly with Q)

A 18.5: Vortrag

Donnerstag, 13. März 2008, 09:30–09:45, 2F

Light propagation in ultracold atomic gases confined by optical lattices — •Stefan Rist and Giovanna Morigi — Departament de Fisica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain

We develop a theory which describes photon propagation in a medium constituted by ultracold atoms confined by an optical lattice. We discuss in particular the input-output relations taking into account the finite size of the optical lattice and the atoms quantum motion and statistics. This work extends previous studies [1,2] by considering the atomic vibrations at the lattice sites, the finite tunneling matrix elements, and saturation effects of the atomic transitions. The coherence properties of the transmitted light are discussed as a function of the quantum state of the gas.

[1] Deutsch et al. Phys. Rev. A 52, 1394 (1995).

[2] Chong et al. Phys. Rev. B 75, 235124 (2007).