Comment on ``Generalized Dynamic Scaling for Critical Relaxation" [Phys. Rev. Lett. 77, 679 (1996), cond-mat/9607013]

TL;DR

This paper clarifies the role of the initial state's magnetic field as a scaling field in nonequilibrium relaxation, refining the interpretation of observed scaling behaviors.

Contribution

It highlights the importance of the initial magnetic field as a scaling variable, providing a clearer understanding of nonequilibrium critical relaxation.

Findings

Initial magnetic field acts as a key scaling field.

Reinterpretation simplifies understanding of relaxation dynamics.

Clarifies previous scaling analysis in critical phenomena.

Abstract

We point out that in nonequilibrium relaxational processes the magnetic field of the initial state (instead of the initial magnetization) has to be considered as the additional scaling field (related to the initial state). Taking this into account the interpretation of the scaling behavior observed in the paper by Zheng becomes more straightforward.