Improved dynamical scaling analysis using the kernel method for nonequilibrium relaxation.

Echinaka, Yuki; Ozeki, Yukiyasu · Phys Rev E · 2016

basic_science · Level V

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Abstract

The dynamical scaling analysis for the Kosterlitz-Thouless transition in the nonequilibrium relaxation method is improved by the use of Bayesian statistics and the kernel method. This allows data to be fitted to a scaling function without using any parametric model function, which makes the results more reliable and reproducible and enables automatic and faster parameter estimation. Applying this method, the bootstrap method is introduced and a numerical discrimination for the transition type is proposed.