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VOLUME 52 | ISSUE 11 | PAGE 610
Critical dynamics of weakly fluctuating degrees of freedom
A procedure is proposed for incorporating the effect of fluctuations in the order parameter on the dynamics of noncritical long-wave degrees of freedom. The dynamic characteristics of such degrees of freedom are unambiguously related to the generalized susceptibility of the system with respect to the field which is the conjugate of the square of the order parameter. Explicit formulas for making a detailed comparison of theory and experiment are proposed for a wide range of transitions.

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