Endres, Manuel Quantum Many Body Systems, Max Planck Institute of Quantum Optics, Max Planck Society;
1302.0693.pdf (Preprint), 708KB
Rath, S. P., Simeth, W., Endres, M., & Zwerger, W. (2013). Non-local order in Mott insulators, duality and Wilson loops. Annals of Physics, 334, 256-271. doi:10.1016/j.aop.2013.04.006.