@article{Hui2013, author = "Ning-Ju Hui and Li-Hua Lu and Xiao-Qiang Xu and You-Quan Li", title = "{(a) The first-order derivative of the entanglement entropy for the ground state with respect to J as a function of the atomic transition strength J for different particle numbers N}", year = "2013", month = "7", url = "https://iop.figshare.com/articles/figure/_a_The_first_order_derivative_of_the_entanglement_entropy_for_the_ground_state_with_respect_to_em_J_/1012203", doi = "10.6084/m9.figshare.1012203.v1" }