Momentum Spectroscopy of Phase Fluctuations of an Elongated Bose-Einstein Condensate

Preprint

11 September 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0309273

Abstract

We have measured the momentum distribution of an elongated BEC (aspect ratio of 152), for temperatures below the critical temperature. The corresponding coherence length is significantly smaller than the condensate length in a wide range of temperature, in quantitative agreement with theoretical predictions. The Lorentzian shape of the momentum spectrum supports the image of a phase fluctuating quasicondensate.

Keywords

MOMENTUM SPECTROSCOPY
CRITICAL TEMPERATURE
EINSTEIN CONDENSATE
PHASE FLUCTUATIONS
ELONGATED BOSE
BOSE EINSTEIN
SPECTROSCOPY
ASPECT RATIO

All Related Versions

Version 1, 2003-09-11, ArXiv

This publication has 0 references indexed in Scilit: