paper

A piecewise deterministic scaling limit of Lifted Metropolis-Hastings in the Curie-Weiss model

arXiv:1509.00302 · doi:10.1214/16-AAP1217

Abstract

In Turitsyn, Chertkov, Vucelja (2011) a non-reversible Markov Chain Monte Carlo (MCMC) method on an augmented state space was introduced, here referred to as Lifted Metropolis-Hastings (LMH). A scaling limit of the magnetization process in the Curie-Weiss model is derived for LMH, as well as for Metropolis-Hastings (MH). The required jump rate in the high (supercritical) temperature regime equals for LMH, which should be compared to for MH. At the critical temperature the required jump rate equals for LMH and for MH, in agreement with experimental results of Turitsyn, Chertkov, Vucelja (2011). The scaling limit of LMH turns out to be a non-reversible piecewise deterministic exponentially ergodic `zig-zag' Markov process.

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