Details
| Original language | English |
|---|---|
| Article number | 010406 |
| Journal | Physical review letters |
| Volume | 91 |
| Issue number | 1 |
| Publication status | Published - 3 Jul 2003 |
Abstract
We measure the intensity correlation function of two interfering spatially displaced copies of phase fluctuating Bose-Einstein condensates. It is shown that this corresponds to a measurement of the phase correlation properties of the initial condensate. Analogous to the method used in the stellar interferometer experiment of Hanbury Brown and Twiss, we use spatial intensity correlations to determine the phase coherence lengths of elongated condensates. We find good agreement with our prediction of the correlation function and confirm the expected coherence length.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 91, No. 1, 010406, 03.07.2003.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Measurement of the Spatial Correlation Function of Phase Fluctuating Bose-Einstein Condensates
AU - Hellweg, D.
AU - Cacciapuoti, L.
AU - Kottke, M.
AU - Schulte, T.
AU - Sengstock, K.
AU - Ertmer, W.
AU - Arlt, J. J.
N1 - Funding information: We thank L. Santos for valuable calculations of the expansion dynamics. This work is supported by the Deutsche Forschungsgemeinschaft within the SFB 407.
PY - 2003/7/3
Y1 - 2003/7/3
N2 - We measure the intensity correlation function of two interfering spatially displaced copies of phase fluctuating Bose-Einstein condensates. It is shown that this corresponds to a measurement of the phase correlation properties of the initial condensate. Analogous to the method used in the stellar interferometer experiment of Hanbury Brown and Twiss, we use spatial intensity correlations to determine the phase coherence lengths of elongated condensates. We find good agreement with our prediction of the correlation function and confirm the expected coherence length.
AB - We measure the intensity correlation function of two interfering spatially displaced copies of phase fluctuating Bose-Einstein condensates. It is shown that this corresponds to a measurement of the phase correlation properties of the initial condensate. Analogous to the method used in the stellar interferometer experiment of Hanbury Brown and Twiss, we use spatial intensity correlations to determine the phase coherence lengths of elongated condensates. We find good agreement with our prediction of the correlation function and confirm the expected coherence length.
UR - http://www.scopus.com/inward/record.url?scp=0042709563&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.91.010406
DO - 10.1103/PhysRevLett.91.010406
M3 - Article
AN - SCOPUS:0042709563
VL - 91
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 1
M1 - 010406
ER -