Strong coupling corrections to the Ginzburg-Landau theory of superfluid [sup 3]He
H. Choi, J. P. Davis, J. Pollanen, T. M. Haard, and W. P. Halperin
In the Ginzburg-Landau theory of superfluid [sup 3]He, the free energy is expressed as an expansion of invariants of a complex order parameter. Strong coupling effects, which increase with increasing pressure, are embodied in the set of coefficients of these order-parameter invariants [A. J. Leggett ... [Phys. Rev. B 75, 174503 (2007)] published Thu May 3, 2007.