Field-theory renormalization and critical dynamics above Tc : Helium, antiferromagnets, and liquid-gas systems
C. De Dominicis, Luca Peliti
The Martin-Siggia-Rose field theories associated with the critical dynamics of mode-coupling systems, are renormalized in a way which decouples statics from dynamics, through the minimal-renormalization procedure. This simplifies considerably the computations which are thus carried out to two-loop order for exponent and Wilson functions. We obtain all dynamic transients for helium, $O(n)$ symmetric antiferromagnets, and liquid-gas systems. We also discuss the relevance for helium of a fixed point where dynamic scaling is weakly violated.
Physical review. B, Condensed matter•Jul 1, 1978•589 citations