Two-component Bose-Hubbard model in an array of cavity polaritons
Strongly Correlated Electrons
2015-06-11 v1 Quantum Physics
Abstract
We propose a scheme which can realize an extended two-component Bose-Hubbard model using polaritons confined in an array of optical cavities. In addition to the density-dependent interactions, this model also contains nonlinear coupling terms between the two components of the polariton. Using a mean-field calculation, we obtain the phase diagram which shows how these terms affect the transition between the Mott insulator and the superfluid phase. In addition, we employ both a perturbation approach and an exact diagonalization method to gain more insights into the phase diagram.
Cite
@article{arxiv.1505.03835,
title = {Two-component Bose-Hubbard model in an array of cavity polaritons},
author = {Yong-Chang Zhang and Xiang-Fa Zhou and Xingxiang Zhou and Guang-Can Guo and Han Pu and Zheng-Wei Zhou},
journal= {arXiv preprint arXiv:1505.03835},
year = {2015}
}