Publication
Title
Superfluidity with and without a condensate in two and three dimensions
Author
Abstract
The recent study of He and You [P.-S. He and W.-L. You, Int. J. Mod. Phys. B26, 1250107 (2012)] on the relation between superfluid and condensate densities in a two-dimensional weakly interacting Boson system assumed a delta(x - x') interaction between two particles at sites x and x'. The main purpose of this article is to point out the sensitivity of the conclusions of He and You to the choice of interaction. Thus, it is known for logarithmic interactions that one can have superfluidity without a condensate. Finally, some related ideas are mentioned in relation to superfluidity in liquid He-4 at exceedingly low temperatures.
Language
English
Source (journal)
Physics and chemistry of liquids. - London
Publication
London : 2012
ISSN
0031-9104
Volume/pages
50:6(2012), p. 819-821
ISI
000311114800009
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 04.02.2013
Last edited 28.11.2017
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