ON CORRECTIONS IN THE GINZBURG-LANDAU EQUATIONS ASSOCIATED WITH THE NORMAL COMPONENT FLOW IN A SUPERFLUID FERMI-LIQUID WITH TRIPLET P-WAVE PAIRING

The Ginzburg-Landau (GL) equation is derived for the spatially inhomog eneous order parameter (OF) of the He-3 type superfluid Fermi liquid ( SFL) (composed of electrically neutral fermions with triplet p-wave pa iring) for a uniform flow of the normal component of the SFL with a ve locity v(n) much less than 2T(c)/p(F) (T-c is the temperature of phase transition from the normal to the superfluid state, and p(F) is the F ermi momentum). The derivation is based on the integrodifferential equ ation for OF, which is valid at temperatures near T-c in the absence o f strong-coupling effects. The main results are the corrections for th e coefficients of the OP gradients in the GL equation (caused by the f act that u(n) not equal 0), which are calculated in the perturbation t heory. These corrections, which indicate the deformation of the OP due to the SFL how with the velocity u(n), can be not only comparable for v(n) much less than 2T(c)/p(F), but also greater than the so-called n ontrivial strong-coupling corrections to these coefficients, depending on the value of v(n), and hence can be of practical importance for de scribing He-3-B at low pressures, when the strong-coupling effects are weak. (C) 1997 American Institute of Physics.