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Phys. Rev. A 68, 035604 (2003) [4 pages]

Two characteristic temperatures for a Bose-Einstein condensate of a finite number of particles

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Z. Idziaszek1,2 and K. Rza̧żewski1,3
1Centrum Fizyki Teoretycznej, Polska Akademia Nauk, 02-668 Warsaw, Poland
2Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany
3Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA

Received 25 April 2003; published 29 September 2003

We consider two characteristic temperatures for a Bose-Einstein condensate, which are related to certain properties of the condensate statistics. We calculate them for an ideal gas confined in power-law traps and show that they approach the critical temperature in the limit of large number of particles. The considered characteristic temperatures can be useful in the studies of Bose-Einstein condensates of a finite number of atoms indicating the point of a phase transition.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.68.035604
DOI: 10.1103/PhysRevA.68.035604
PACS: 03.75.Hh, 05.30.Jp

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