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arXiv · 0911.1005

Role of topological defects in the phase transition of modified XY model : A Monte Carlo study

Suman Sinha·Soumen Kumar Roy
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Abstract

Monte Carlo simulation has been performed on a classical two dimensional XY- model with a modified form of interaction potential to investigate the role of topological defects on the phase transition exhibited by the model. In simulations in a restricted ensemble without defects, the system appears to remain ordered at all temperatures. Suppression of topological defects on the square plaquettes in the modified XY- model leads to complete elimination of the phase transition observed in this model.

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Suman Sinha, Soumen Kumar Roy. 2010-03-26. Role of topological defects in the phase transition of modified XY model : A Monte Carlo study. https://doi.org/10.1103/physreve.81.041120

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