Publication Date

2000

Comments

This paper was harvested from ArXiv.org and ArXiv identifier is arXiv:0009071v1 The published version is at http://www.springerlink.com/content/q422104864025647/

Abstract

Several authors have considered the possibility of a generalized Bose-Einstein condensation (BEC) in which a band of low states is occupied so that the total occupation number is macroscopic, even if the occupation number of each state is not extensive. The Hohenberg theorem (HT) states that there is no BEC into a single state in 2D; we consider its validity for the case of a generalized condensation and find that, under certain conditions, the HT does not forbid a BEC in 2D. We discuss whether this situation actually occurs in any theoretical model system.

Pages

263-268

Volume

121

Issue

5-6

Journal Title

Journal of Low Temperature Physics



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