Düsseldorf 2007 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 55: Quanteneffekte (Lichtstreuung I)
Q 55.1: Vortrag
Donnerstag, 22. März 2007, 12:00–12:15, 5E
Localization of atomic ensembles via superfluorescence — •Jörg Evers1, Mihai Macovei1, M. Suhail Zubairy1,2, and Christoph H. Keitel1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 2Institute for Quantum Studies and Dept. of Physics, Texas A&M University, College Station, Texas 77843, USA
The sub-wavelength localization of an ensemble of atoms concentrated to a small volume in space is studied [1]. For this, we discuss the light scattered in the interaction of the atoms with a standing wave laser field [2]. The fluorescence light can be described by an intensity profile, which depends on the standing wave field parameters, the ensemble properties, and which is modified due to collective effects in the ensemble of nearby particles. We demonstrate that the intensity profile can be tailored to suit different localization setups, and discuss two localization schemes. First, we show how to localize an ensemble fixed at a certain position in the standing wave field. Second, we discuss localization of an ensemble passing through the standing wave field.
[1] M. Macovei, J. Evers, C. H. Keitel, and M. S. Zubairy, quant-ph/0611148.
[2] J.-T. Chang, J. Evers, M. O. Scully and M. S. Zubairy, Phys. Rev. A 73, 031803(R) (2006).