Extensive Monte Carlo simulation has been performed on a 2D modified XY model which behaves like a dense defect system. Topological defects are shown to introduce disorders in the system which makes the helicity modulus jump non-universal. The results corroborate the experimental observation of non-universal jump of the superconducting density in high-Tc superconducting films.
Cite
@article{arxiv.1103.4211,
title = {Non-universal behavior of helicity modulus in a dense defect system},
author = {Suman Sinha},
journal= {arXiv preprint arXiv:1103.4211},
year = {2011}
}
Comments
4 pages, 5 figures, double column, Accepted for publication as a Rapid Communication in Phys. Rev. E (In Press)