Quasiaverages in microscopic theory of quantum liquids

A. Isayev, M. Kovalevsky
1997 Journal of Physical Studies  
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 super uid 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 ux densities of additive motion integrals
more » ... e 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 super uid Fermi{liquid.
doi:10.30970/jps.01.389 fatcat:abufcposxvg2vokvbyidy47n7y