Construction of theory of a binary mixture of nonideal Bose gases (or liquids) by the method of collective variables. II. The s-particle density matrices at T = O. Variational calculation of the ground-state energy and density-density correlation functions

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Theor. Math. Phys.; (United States)

DOI:https://doi.org/10.1007/BF01029103· OSTI ID:5832502

Balabanyan, G O

The s-particle density matrices at T = O are found by the method of collective variables for a binary mixture of nonideal Bose gases (or liquids). The variational method is used to find the ground-state energy, the excitation spectrum, and the density-density correlation functions. It is shown that the zeroth approximations of the variational and microscopic approaches are consistent. The existence of a Bose condensate in the system is established. A binary mixture of Bose gases with equal masses of the particles is considered as an illustration in the framework of the hard-sphere pseudopotential model.

• Research Organization: Moscow Institute of Electronic Engineering, USSR
• OSTI ID: 5832502
• Journal Information: Theor. Math. Phys.; (United States), Journal Name: Theor. Math. Phys.; (United States) Vol. 71:1; ISSN TMPHA
• Country of Publication: United States
• Language: English

Related Subjects

657002* -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY MIXTURES
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
CORRELATION FUNCTIONS
DENSITY MATRIX
DISPERSIONS
ENERGY LEVELS
FUNCTIONS
GAUSS FUNCTION
GREEN FUNCTION
GROUND STATES
MATHEMATICAL MODELS
MATRICES
MECHANICS
MIXTURES
PARTICLE MODELS
QUANTUM MECHANICS
STATISTICAL MECHANICS
VARIATIONAL METHODS
WAVE FUNCTIONS