Extended Bose-Hubbard model with pair hopping on the triangular lattice
Quantum Gases
2015-06-12 v1
Abstract
We study systematically an extended Bose-Hubbard model on the triangular lattice by means of a meanfield method based on the Gutzwiller ansatz. Pair hopping terms are explicitly included and a three-body constraint is applied. The ground-state phase diagram and a variety of quantum phase transitions are investigated in great detail. In particular, we show the existence and stability of the pair supersolid phase.
Cite
@article{arxiv.1302.1376,
title = {Extended Bose-Hubbard model with pair hopping on the triangular lattice},
author = {Yancheng Wang and Wanzhou Zhang and Hui Shao and Wenan Guo},
journal= {arXiv preprint arXiv:1302.1376},
year = {2015}
}