The two-fluid model with superfluid entropy
凝聚态物理
2015-06-25 v2
摘要
The two-fluid model of liquid helium is generalized to the case that the superfluid fraction has a small entropy content. We present theoretical arguments in favour of such a small superfluid entropy. In the generalized two-fluid model various sound modes of HeII are investigated. In a superleak carrying a persistent current the superfluid entropy leads to a new sound mode which we call sixth sound. The relation between the sixth sound and the superfluid entropy is discussed in detail.
引用
@article{arxiv.cond-mat/9507038,
title = {The two-fluid model with superfluid entropy},
author = {R. Schaefer and T. Fliessbach},
journal= {arXiv preprint arXiv:cond-mat/9507038},
year = {2015}
}
备注
22 pages, latex, published in Nuovo Cimento 16 D (1994) 373