Boson-boson mixtures and triplet correlations
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The hypernetted-chain formalism for boson-boson mixtures described by an extended Jastrow correlated wave function is derived, taking into account elementary diagrams and triplet correlations. The energy of an ideal boson /sup 3/He-/sup 4/He mixture is computed for low values of the /sup 3/He concentration. The zero-/sup 3/He-concentration limit provides a /sup 3/He chemical potential in good agreement with the experimental value, when a McMillan two-body correlation factor and the Lennard-Jones potential are adopted. If the Euler equations for the two-body correlation factors are solved in presence of triplet correlations, the agreement is again improved. At the experimental /sup 4/He equilibrium density, the /sup 3/He chemical potential turns out to be -2.58 K, to be compared with the experimental value, -2.79 K.
- Research Organization:
- Dipartimento di Fisica dell'Universita di Pisa and Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Italy
- OSTI ID:
- 6217259
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 30:3; 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
CORRELATION FUNCTIONS
DISPERSIONS
DISTRIBUTION FUNCTIONS
ENERGY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
FUNCTIONS
GROUND STATES
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
JASTROW THEORY
LENNARD-JONES POTENTIAL
LIGHT NUCLEI
MIXTURES
NUCLEI
POTENTIALS
QUANTUM FLUIDS
STABLE ISOTOPES
VARIATIONAL METHODS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATION FUNCTIONS
DISPERSIONS
DISTRIBUTION FUNCTIONS
ENERGY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
FUNCTIONS
GROUND STATES
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
JASTROW THEORY
LENNARD-JONES POTENTIAL
LIGHT NUCLEI
MIXTURES
NUCLEI
POTENTIALS
QUANTUM FLUIDS
STABLE ISOTOPES
VARIATIONAL METHODS