24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Overcoming strong metastabilities with the LLR method

26 Jul 2016, 17:50
20m
Building 67 Room 1007 (Highfield Campus, University of Southampton)

Building 67 Room 1007

Highfield Campus, University of Southampton

Talk Algorithms and Machines Algorithms and Machines

Speaker

Prof. Biagio Lucini (Swansea University)

Description

It has been shown that the recently proposed LLR method is very efficient at overcoming strong metastabilities that arise near first-order phase transition points. Here we present a systematic study of the performance of the algorithm near (pseudo)critical points on q-state Potts models for q as large as 20, in two and three dimensions. In particular, we shall focus our study on the ergodicity of the replica exchange step and the underlying physical mechanism. Our results for thermodynamic observables (including interface tensions at criticality) are also discussed.

Primary author

Prof. Biagio Lucini (Swansea University)

Co-authors

Prof. Kurt Langfeld (Plymouth University) Mr William Fall (Swansea University)

Presentation Materials