Details
| Original language | English |
|---|---|
| Pages (from-to) | 165-172 |
| Number of pages | 8 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 76 |
| Issue number | 2 |
| Publication status | Published - Feb 2003 |
Abstract
Quasi-one-dimensional Bose-Einstein condensates (BECs) in elongated traps exhibit significant phase fluctuations even at very low temperatures. We present recent experimental results on the dynamic transformation of phase fluctuations into density modulations during time of flight and show the excellent quantitative agreement with the theoretical prediction. In addition we confirm that, under our experimental conditions, in the magnetic trap density modulations are strongly suppressed even when the phase fluctuates. We also discuss our theoretical results on control of the condensate phase by employing a time-dependent perturbation. Our results set important limitations on future applications of BECs in precision atom interferometry and atom optics, but at the same time suggest pathways to overcome these limitations.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 76, No. 2, 02.2003, p. 165-172.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Characterization and control of phase fluctuations in elongated Bose-Einstein condensates
AU - Kreutzmann, H.
AU - Sanpera, A.
AU - Santos, L.
AU - Lewenstein, M.
AU - Hellweg, D.
AU - Cacciapuoti, L.
AU - Kottke, M.
AU - Schulte, T.
AU - Sengstock, K.
AU - Arlt, J. J.
AU - Ertmer, W.
PY - 2003/2
Y1 - 2003/2
N2 - Quasi-one-dimensional Bose-Einstein condensates (BECs) in elongated traps exhibit significant phase fluctuations even at very low temperatures. We present recent experimental results on the dynamic transformation of phase fluctuations into density modulations during time of flight and show the excellent quantitative agreement with the theoretical prediction. In addition we confirm that, under our experimental conditions, in the magnetic trap density modulations are strongly suppressed even when the phase fluctuates. We also discuss our theoretical results on control of the condensate phase by employing a time-dependent perturbation. Our results set important limitations on future applications of BECs in precision atom interferometry and atom optics, but at the same time suggest pathways to overcome these limitations.
AB - Quasi-one-dimensional Bose-Einstein condensates (BECs) in elongated traps exhibit significant phase fluctuations even at very low temperatures. We present recent experimental results on the dynamic transformation of phase fluctuations into density modulations during time of flight and show the excellent quantitative agreement with the theoretical prediction. In addition we confirm that, under our experimental conditions, in the magnetic trap density modulations are strongly suppressed even when the phase fluctuates. We also discuss our theoretical results on control of the condensate phase by employing a time-dependent perturbation. Our results set important limitations on future applications of BECs in precision atom interferometry and atom optics, but at the same time suggest pathways to overcome these limitations.
UR - http://www.scopus.com/inward/record.url?scp=0037312631&partnerID=8YFLogxK
U2 - 10.1007/s00340-002-1074-6
DO - 10.1007/s00340-002-1074-6
M3 - Article
AN - SCOPUS:0037312631
VL - 76
SP - 165
EP - 172
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 2
ER -