Excitation spectrum and superfluid density ofHe3-AatT=0
- 1 October 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (7) , 3765-3769
- https://doi.org/10.1103/physrevb.30.3765
Abstract
The excitation spectrum of - at is studied and it shows a discretization. This is linked to the localization of the excitations which are trapped in the existing texture. The excitation density of states is calculated and is found to be nonzero at zero energy. A corresponding departure of the superfluid density from its ideal value is obtained.
Keywords
This publication has 2 references indexed in Scilit:
- Superfluid current in-atPhysical Review B, 1983
- Microscopic theory for3He B hydrodynamicsJournal of Physics C: Solid State Physics, 1981