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Journal of Physical Studies 12(1), Article 1001 [5 pages] (2008)
DOI: https://doi.org/10.30970/jps.12.1001 DENSITY MATRIX OF BINARY BOSE-LIQUID IN THE APPROXIMATION OF CORRELATIONSI. O. Vakarchuk, V. S. Pastukhov
Department for Theoretical Physics, Ivan Franko National University of Lviv, |
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We found density matrix of binary Bose-liquid taking into account only pair correlations and separating density matrices of ideal subsystems explicitly. In such a way higher-order terms are effectively considered. The self-consistence of the theory is shown for the low-temperature case and in the classical limit ($\hbar\rightarrow 0$). In our next paper we will try to evaluate expression for reduced $s$-particle density matrices and investigate thermodynamic properties of a two-component Bose-liquids especially the phase separation region. The impurity influence on the Bose-Einstein condensation phenomenon and will be also studied.
PACS number(s): 03.77.Mn, 67.55.Lf