Chaoticity and Coherence in Bose-Einstein Condensation and Correlations

Conference · Fri Aug 01 04:00:00 EDT 2014

OSTI ID:1570143

Wong, Cheuk-Yin ^[1]; Zhang, W. N. ^[2]; Liu, Jie ^[3]; Ru, Peng ^[3]

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1. ORNL
2. Harbin Institute of Technology, China
3. Dalian University of Technology, China

We review the properties of chaoticity and coherence in Bose-Einstein condensation and correlations, for a dense boson system in its mean-field represented represented approximately by a harmonic oscillator potential. The order parameter and the nature of the phase transition from the chaotic to the condensate states are studied for different fixed numbers of bosons. The two-particle correlation function in momentum space is calculated to investigate how the Bose-Einstein correlation depends on the degree of coherence and condensation and other momentum variables. We generalize the Bose-Einstein correlation analysis to three-particle correlations to show its dependence on the degree of coherence and condensation.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1570143
• Country of Publication: United States
• Language: English