Phase fluctuations in low-dimensional Gross-Neveu models
High Energy Physics - Theory
2007-05-23 v1 Superconductivity
Abstract
We consider the Gross-Neveu model with a continuous chiral symmetry in two and three spacetime dimensions at zero and finite temperature. In order to study long-range phase coherence, we construct an effective low-energy Lagrangian for the phase . This effective Lagrangian is used to show that the fermionic two-particle correlation function at finite temperature decays algebraically in 2+1 dimensions and exponentially in 1+1 dimensions.
Keywords
Cite
@article{arxiv.hep-th/0506261,
title = {Phase fluctuations in low-dimensional Gross-Neveu models},
author = {Jens O. Andersen},
journal= {arXiv preprint arXiv:hep-th/0506261},
year = {2007}
}
Comments
4 pages, uses revtex4