@ARTICLE{LaDa,
title = {Locating the quantum critical point of the Bose-Hubbard model through singularities of simple observables},
journal = {Sci. Rep.},
author = {Mateusz L\k{a}cki and Bogdan Damski and Jakub Zakrzewski},
volume = {8},
year = {2016},
pages = {38340},
arxiv = {http://arxiv.org/abs/1605.04316},
eprint = {1605.04316}
}