Thermodynamics of Superfluidity
Soft Condensed Matter
2009-11-10 v1 Statistical Mechanics
Abstract
New, superfluid specific additive integral of motion is found. This facilitates investigation of general thermodynamic equilibrium conditions for superfluid. The analysis is performed in an extended space of thermodynamic variables containing (along with the usual thermodynamic coordinates such as pressure and temperature) superfluid velocity and momentum density. The equilibrium stability conditions lead to thermodynamic inequalities which replace the Landau superfluidity criterion at finite temperatures.
Cite
@article{arxiv.cond-mat/0405111,
title = {Thermodynamics of Superfluidity},
author = {A. F. Andreev and L. A. Melnikovsky},
journal= {arXiv preprint arXiv:cond-mat/0405111},
year = {2009}
}
Comments
Polished and enlarged version of cond-mat/0304019. To appear in JLTP (Olli V. Lounasmaa Memorial Issue). 10 pages, 2 figures