2005/01/19 by Mathilde Hugbart, J. A. Retter, Jocelyn Retter +11 · 32 citations
Chemistry · Mathematics · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Coherence length #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Correlation function (quantum field theory) #Exponential function #Function (biology) #Gaussian #Mathematical analysis #Mathematics #Measure (data warehouse) #Optics #Phase (matter) #Phase coherence #Physics #Quantum mechanics #Spatial coherence #Spectroscopy and Laser Applications #Statistical physics #Strong Light-Matter Interactions #cond-mat.soft
paper · pdf · doi:10.1140/epjd/e2005-00056-2
published in The European Physical Journal D 35(1), 155-163 (Springer Science+Business Media) · 8 pages, 6 figure, submitted to EPJD
arxiv created 2005/01/19 · openalex publication_date 2005/05/02 · arxiv updated 2009/12/01 · openalex created_date 2022/10/01 · openalex updated_date 2026/08/05
We measure the spatial correlation function of Bose-Einstein condensates in the cross-over region between phase-coherent and strongly phase-fluctuating condensates. We observe the continuous path from a gaussian-like shape to an exponential-like shape characteristic of one-dimensional phase-fluctuations. The width of the spatial correlation function as a function of the temperature shows that the condensate coherence length undergoes no sharp transition between these two regimes.