Details
| Original language | English |
|---|---|
| Article number | 163601 |
| Journal | Physical Review Letters |
| Volume | 99 |
| Issue number | 16 |
| Publication status | Published - 16 Oct 2007 |
Abstract
We report on strong vanderWaals blockade in two-photon Rydberg excitation of ultracold magnetically trapped Rb87 atoms. The excitation dynamics was investigated for a large range of densities and laser intensities and shows a full saturation and a strong suppression with respect to single-atom behavior. The observed scaling of the initial increase with density and laser intensity provides evidence for coherent collective excitation. This coherent collective behavior, that was observed for up to several thousand atoms per blockade volume, is generic for all mesoscopic systems which are able to carry only one single quantum of excitation.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 99, No. 16, 163601, 16.10.2007.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Evidence for coherent collective rydberg excitation in the strong blockade regime
AU - Heidemann, Rolf
AU - Raitzsch, Ulrich
AU - Bendkowsky, Vera
AU - Butscher, Björn
AU - Löw, Robert
AU - Santos, Luis
AU - Pfau, Tilman
PY - 2007/10/16
Y1 - 2007/10/16
N2 - We report on strong vanderWaals blockade in two-photon Rydberg excitation of ultracold magnetically trapped Rb87 atoms. The excitation dynamics was investigated for a large range of densities and laser intensities and shows a full saturation and a strong suppression with respect to single-atom behavior. The observed scaling of the initial increase with density and laser intensity provides evidence for coherent collective excitation. This coherent collective behavior, that was observed for up to several thousand atoms per blockade volume, is generic for all mesoscopic systems which are able to carry only one single quantum of excitation.
AB - We report on strong vanderWaals blockade in two-photon Rydberg excitation of ultracold magnetically trapped Rb87 atoms. The excitation dynamics was investigated for a large range of densities and laser intensities and shows a full saturation and a strong suppression with respect to single-atom behavior. The observed scaling of the initial increase with density and laser intensity provides evidence for coherent collective excitation. This coherent collective behavior, that was observed for up to several thousand atoms per blockade volume, is generic for all mesoscopic systems which are able to carry only one single quantum of excitation.
UR - http://www.scopus.com/inward/record.url?scp=35348892748&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.99.163601
DO - 10.1103/PhysRevLett.99.163601
M3 - Article
AN - SCOPUS:35348892748
VL - 99
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 16
M1 - 163601
ER -