Open AccessNumber‐of‐particle fluctuations in systems with Bose‐Einstein condensate
Author(s) -
Yukalov V. I.
Publication year - 2005
Publication title -
laser physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 72
eISSN - 1612-202X
pISSN - 1612-2011
DOI - 10.1002/lapl.200410157
Subject(s) - bose–einstein condensate , physics , particle (ecology) , grand canonical ensemble , bose gas , particle number , canonical ensemble , quantum mechanics , condensed matter physics , volume (thermodynamics) , mathematics , oceanography , statistics , monte carlo method , geology
Abstract Fluctuations of the number of particles for the dilute interacting gas with Bose‐Einstein condensate are considered. It is shown that in the Bogolubov theory these fluctuations are normal. The fluctuations of condensed as well as noncondensed particles are also normal both in canonical and grand canonical ensembles. (© 2005 by Astro, Ltd. Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)