DOI: https://doi.org/10.30970/jps.01.389
QUASIAVERAGES IN MICROSCOPIC THEORY OF QUANTUM LIQUIDS
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Journal of Physical Studies 1(3), 389–401 (1997)
DOI: https://doi.org/10.30970/jps.01.389 QUASIAVERAGES IN MICROSCOPIC THEORY OF QUANTUM LIQUIDS |
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A. Isayev, M. Kovalevsky
Institute of Physics and Technology,
1 Academichna Str., Kharkiv UA-310108, Ukraine
An approach based on the method of quasiaverages and the reduced description method is developed as a microscopic tool for the derivation of hydrodynamic equations for superfluid liquids with triplet pairing of quasiparticles. Additional thermodynamic parameters connected with different spontaneously broken symmetries of the system are determined with the use of the order parameter operator as functionals of the nonequilibrium statistical operator. The flux densities of additive motion integrals are obtained in terms of the locally equilibrium thermodynamic potential. Selfconsistent equations for the energy gap and quasiparticle energy are found which are analyzed for the unitary and nonunitary states of superfluid Fermi-liquid.