Open AccessFLOW PROPERTIES OF SUPERFLUID SYSTEMS OF FERMIONS
Author(s) -
A.E. Glassgold,
A.M. Sessler
Publication year - 1960
Language(s) - English
Resource type - Reports
DOI - 10.2172/937431
Subject(s) - moment of inertia , superfluidity , physics , symmetry (geometry) , flow (mathematics) , inertia , fluid dynamics , anisotropy , vortex , classical mechanics , mechanics , condensed matter physics , quantum mechanics , geometry , mathematics
The nonspherically symmetric solutions to the Bardeen-Cooper-Schrieffer theory are given a physical interpretation in terms of an anisotropic fluid model. These solutions have been used previously to predict a phase transition in liquid by He{sup 3} by Emery and Sessler and Anderson, Morel, Brueckner, and Soda. An investigation of the flow properties of such systems is made that involves the calculation of the effective mass for flow in a straight channel and the moment of inertia of a cylindrical container of the liquid. The angular dependent energy-gap characteristic of this type of theory leads to an effective mass for flow that depends on the angle between the axis of symmetry of the fluid and the direction of flow. It also vanishes as the absolute temperature tends to zero, although not as rapidly as for a spherically symmetric gap. The moment of inertia, when the symmetry direction for the fluid and the rotation axis are the same, is simply related to the mass for flow