2014/08/08 by Yinbiao Yang, Yang, Yinbiao, Wen-ge Wang +1
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Other Condensed Matter (cond-mat.other) #Quantum Gases (cond-mat.quant-gas) #Quantum Information and Cryptography #Quantum Physics (quant-ph) #cond-mat.mes-hall #cond-mat.other #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.48550/arxiv.1408.2440
11 pages, 6 figures
arxiv created 2014/08/08 · openalex publication_date 2014/08/08 · arxiv updated 2014/08/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study quantum coherence properties of a dilute gas at temperatures above, but not much above the transition temperature of Bose-Einstein condensation (BEC). In such a gas, a small proportion of the atoms may possess coherence lengths longer than the mean neighboring-atomic distance, implying the existence of quantum coherence more than that expected for thermal atoms. Conjecturing that a part of this proportion of the atoms may lie in a BEC-type state, some unexplained experimental results [Phys. Rev. A, 71, 043615 (2005)] can be explained.