Published February 17, 2006
| Version v1
Journal article
Anisotropic System of Quasiparticles in Superfluid Helium
- 1. Karazin Kharkov National University, Svobody Square 4, Kharkov 61077 (Ukraine)
- 2. School of Physics, University of Exeter, Exeter EX4 4QL (United Kingdom)
Description
The thermodynamic properties of anisotropic quasiparticle systems of He II are considered for all degrees of anisotropy. It is shown that the thermodynamic functions of a strongly anisotropic phonon-roton system are mainly determined by rotons at all temperatures. Analytical expressions for the roton thermodynamic functions are obtained for all degrees of anisotropy. The maximum anisotropy is limited by the criterion for thermodynamic stability, which is here derived for the whole temperature range
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 96
- Journal Issue
- 6
- Journal Page Range
- p. 065301-065301.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37081228
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANISOTROPY; HELIUM; HELIUM 4; PHONONS; QUASIPARTICLE-PHONON MODEL; ROTONS; STABILITY; SUPERFLUIDITY; THERMODYNAMIC PROPERTIES
- Descriptors DEC
- ELEMENTS; EVEN-EVEN NUCLEI; FLUIDS; GASES; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NONMETALS; NUCLEAR MODELS; NUCLEI; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE GASES; STABLE ISOTOPES
Optional Information
- Notes
- (c) 2006 The American Physical Society