Variational calculation of the binding energy of one /sup 3/He impurity in liquid /sup 4/He

Journal Article · Wed Feb 01 04:00:00 EST 1989 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00683379· OSTI ID:5628460

Boronat, J; Fabrocini, A; Polls, A

The authors present a variational microscopic study of the liquid /sup 4/He with one /sup 3/He impurity at zero temperature, within the framework of the average correlation approximation. In this approach all calculations can be referred to quantities of liquid /sup 4/He. The chemical potentials of liquid /sup 4/He and of a /sup 3/He impurity are studied in the liquid range of densities and the results show an overall good agreement with the experimental data. Detailed comparisons with previous calculations are also presented. Due to the presence of the pressure term, the calculation of chemical potentials is a severe test to the capability of the wave function and the interaction to obtain a good saturation density. The calculation of the chemical of the impurity using the Lennard-Jones and the Aziz potentials, points out the different balance of kinetic and potential energies obtained in the variational minimization of these two potentials.

• Research Organization: Universitat de Barcelona (Spain)
• OSTI ID: 5628460
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 74:3-4; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSOLUTE ZERO TEMPERATURE
BINDING ENERGY
DENSITY
DISTRIBUTION FUNCTIONS
ENERGY
ENERGY LEVELS
EQUILIBRIUM
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FUNCTIONS
GROUND STATES
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
IMPURITIES
ISOTOPES
KINETIC ENERGY
LENNARD-JONES POTENTIAL
LIGHT NUCLEI
NUCLEI
PHYSICAL PROPERTIES
POTENTIAL ENERGY
POTENTIALS
PRESSURE DEPENDENCE
STABLE ISOTOPES
VARIATIONAL METHODS
WAVE FUNCTIONS