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Numerical simulations of the random phase sine-Gordon model and renormalization group predictions

By David J. Lancaster and J.J. Ruiz-Lorenzo


Numerical simulations of the random phase sine-Gordon model suffer from strong finite size effects preventing the non-Gaussian log2 r component of the spatial correlator from following the universal infinite volume prediction. We show that a finite size prediction based on perturbative renormalization group (RG) arguments agrees well with new high precision simulations for small coupling and close to the critical temperature.\u

Topics: UOW3
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Provided by: WestminsterResearch

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