Effective field theory for He-IV
Other Condensed Matter
2009-11-11 v1
Abstract
We introduce an effective scalar field theory to describe the He-IV phase diagram, which can be considered as a generalization of the XY model which gives the usual lambda-transition. This theory results from a Ginzburg-Landau Hamiltonian with higher order derivatives, which allow to produce transitions between the superfluid, normal liquid and solid phases of He-IV. Mean field and Monte Carlo analyses suggest that this model is able to reproduce the main qualitative features of He-IV phase transitions.
Keywords
Cite
@article{arxiv.cond-mat/0511384,
title = {Effective field theory for He-IV},
author = {J. M. Carmona and S. Jimenez and J. Polonyi and A. Tarancon},
journal= {arXiv preprint arXiv:cond-mat/0511384},
year = {2009}
}