Exact SO(5) Symmetry in spin 3/2 fermionic system
Strongly Correlated Electrons
2009-02-20 v4 Superconductivity
Abstract
The spin 3/2 fermion models with contact interactions have a {\it generic} SO(5) symmetry without any fine-tuning of parameters. Its physical consequences are discussed in both the continuum and lattice models. A Monte-Carlo algorithm free of the sign problem at any doping and lattice topology is designed when the singlet and quintet interactions satisfy , thus making it possible to study different competing orders with high numerical accuracy. This model can be accurately realized in ultra-cold atomic systems.
Keywords
Cite
@article{arxiv.cond-mat/0302165,
title = {Exact SO(5) Symmetry in spin 3/2 fermionic system},
author = {Congjun Wu and Jiang-ping Hu and Shou-cheng Zhang},
journal= {arXiv preprint arXiv:cond-mat/0302165},
year = {2009}
}
Comments
5 pages, 1 figs, more references added