Fluctuations of the Condensate in Ideal and Interacting Bose Gases

Abstract

We investigate the fluctuations of the condensate in the ideal and weakly interacting Bose gases confined in a box of volume V within canonical ensemble. Canonical ensemble is developed to describe the behavior of the fluctuations when different methods of approximation to the weakly interacting Bose gases are used. Research shows that the fluctuations of the condensate exhibit anomalous behavior for the interacting Bose gas confined in a box.

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References in corpus (2)

• Bose-Einstein Condensation of Metastable Helium
• Critical Temperature and Condensate Fraction of the Trapped Interacting Bose Gas with Finite-size Effects

Cited by in corpus (9)

• Canonical Statistics of Trapped Ideal and Interacting Bose Gases
• Microcanonical fluctuations of the condensate in weakly interacting Bose gases
• Statistical Properties of Interacting Bose Gases in Quasi-2D Harmonic Traps
• Anomalous fluctuations of two-dimensional Bose-Einstein condensates
• Continuum of classical-field ensembles from canonical to grand canonical and the onset of their equivalence
• Phase diffusion of Bose-Einstein Condensation close to zero temperature
• Number Fluctuation and the Fundamental Theorem of Arithmetic
• Anomalous particle-number fluctuations in a three-dimensional interacting Bose-Einstein condensate
• On the fluctuations of the number of atoms in the condensate