Multicanonical Cluster Algorithm

TL;DR

This paper introduces a multicanonical hybrid algorithm combining microcanonical updates with demon buffers, demonstrated on the 2D 7-state Potts model, enhancing simulation flexibility and efficiency.

Contribution

It presents a novel multicanonical cluster algorithm that integrates demon buffers for improved spin system updates in statistical physics simulations.

Findings

Successfully applied to 2D 7-state Potts model

Supports large volumes up to 128^2

Enhances update scheme versatility

Abstract

In this talk I present a multicanonical hybrid-like two-step algorithm, which consists of a microcanonical spin system update with demons, and a multicanonical demon refresh. The demons act as a buffer between the multicanonical heat bath and the spin system, allowing for a large variety of update schemes. In this work the cluster algorithm is demonstrated with the 2-dimensional 7-state Potts model, using volumes up to $128^2$.