# On the Nature of the Gaussian Approximations in Phase Ordering Kinetics s

Source: [On the Nature of the Gaussian Approximations in Phase Ordering Kinetics s](<https://www.sota2.com/research/paper/68fa341f1e209131ce895beb>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T20:27:13.692Z

Authors: De Siena, M. Zannetti

Published: 1994-09-09T15:27:16.000Z

## Abstract

The structure of the gaussian auxiliary field approximation in the theory of phase ordering kinetics is analysed with the aim of placing the method within the context of a systematic theory. While we are unable to do this for systems with a scalar order parameter, where the approximation remains uncontrolled, a systematic development about the gaussian approximation can be outlined for systems with a vector order parameter in terms of a suitably defined $1/N$-expansion.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/9409040>)

[PDF](<https://arxiv.org/pdf/cond-mat/9409040.pdf>)