Variational calculation of ground-state properties of a binary boson system: Properties of dilute mixtures of /sup 3/He atoms in superfluid /sup 4/He
Journal Article
·
· Phys. Rev., Sect. B. Condens. Matter; (United States)
In the theory of Woo, Tan, and Massey the properties of /sup 3/He atoms in superfluid /sup 4/He are determined by ground-state properties of the corresponding binary boson system. Here, we present a variational calculation for these ground-state properties of the binary boson system as well as for the /sup 3/He-/sup 4/He mixture. A correction to the long-wavelength effective interaction is calculated by a paired-phonon analysis using the ground-state wave function of pure liquid /sup 4/He. The present results are consistent with other phenomenological theories. Particularly, the effective /sup 3/He quasiparticle interaction above about 7.4 atm is qualitatively in agreement with that obtained by Landau, Tough, Brubaker, and Edwards from osmotic-pressure data.
- Research Organization:
- Department of Physics, Brown University, Providence, Rhode Island 02912
- OSTI ID:
- 6079366
- Journal Information:
- Phys. Rev., Sect. B. Condens. Matter; (United States), Journal Name: Phys. Rev., Sect. B. Condens. Matter; (United States) Vol. 19:7; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN STATISTICS
CORRELATED-PARTICLE MODELS
DISPERSIONS
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
GROUND STATES
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MIXTURES
NUCLEI
PARTICLE MODELS
QUANTUM FLUIDS
QUASI PARTICLES
STABLE ISOTOPES
VARIATIONAL METHODS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN STATISTICS
CORRELATED-PARTICLE MODELS
DISPERSIONS
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
GROUND STATES
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MIXTURES
NUCLEI
PARTICLE MODELS
QUANTUM FLUIDS
QUASI PARTICLES
STABLE ISOTOPES
VARIATIONAL METHODS