Extracting atoms on demand with lasers

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Extracting atoms on demand with lasers
Mohring, Bernd (Universität Ulm. Abteilung Quantenphysik)
Bienert, Marc (Universität Ulm. Abteilung Quantenphysik)
Haug, Florian (Universität Ulm. Abteilung Quantenphysik)
Morigi, Giovanna (Universität Ulm. Abteilung Quantenphysik)
Schleich, Wolfgang P. (Universität Ulm. Abteilung Quantenphysik)
Raizen, Mark G. (The University of Texas at Austin. Department of Physics)
American Physical Society

Fecha:	2005
Resumen:	We propose a scheme that allows us to coherently extract cold atoms from a reservoir in a deterministic way. The transfer is achieved by means of radiation pulses coupling two atomic states which are object to different trapping conditions. A particular realization is proposed, where one state has zero magnetic moment and is confined by a dipole trap, whereas the other state with nonvanishing magnetic moment is confined by a steep microtrap potential. We show that in this setup a predetermined number of atoms can be transferred from a reservoir, a Bose-Einstein condensate, into the collective quantum state of the steep trap with high efficiency in the parameter regime of present experiments.
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Publicado en:	Physical review. A, Vol. 71, Issue 5 (May 2005) , p. 053601-1-053601-10, ISSN 1050-2947

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