Characterization of Bose-Hubbard Models with Quantum Non-demolition Measurements
Quantum Gases
2014-11-12 v2 Quantum Physics
Abstract
We propose a scheme for the detection of quantum phase transitions in the 1D Bose-Hubbard (BH) and 1D Extended Bose-Hubbard (EBH) models, using the non-demolition measurement technique of quantum polarization spectroscopy. We use collective measurements of the effective total angular momentum of a particular spatial mode to characterise the Mott insulator to superfluid phase transition in the BH model, and the transition to a density wave state in the EBH model. We extend the application of collective measurements to the ground states at various deformations of a super-lattice potential.
Keywords
Cite
@article{arxiv.1408.2533,
title = {Characterization of Bose-Hubbard Models with Quantum Non-demolition Measurements},
author = {B. Rogers and M. Paternostro and J. F. Sherson and G. De Chiara},
journal= {arXiv preprint arXiv:1408.2533},
year = {2014}
}
Comments
8 pages, 9 figures; published version in PRA, Editors' Suggestion