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arXiv · 1707.08683

A Variational Approach to Monte Carlo Renormalization Group

Yantao Wu·Roberto Car
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Abstract

We present a Monte Carlo method for computing the renormalized coupling constants and the critical exponents within renormalization theory. The scheme, which derives from a variational principle, overcomes critical slowing down, by means of a bias potential that renders the coarse grained variables uncorrelated. The 2D Ising model is used to illustrate the method.

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Yantao Wu, Roberto Car. 2017-07-27. A Variational Approach to Monte Carlo Renormalization Group. https://doi.org/10.1103/physrevlett.119.220602

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