title: Analytical theory of dark nonlocal solitons.
abstract: We investigate properties of dark solitons in nonlocal materials with an arbitrary degree of nonlocality. We employ the variational technique and describe dark solitons, for the first time to our knowledge, in the whole range of degree of nonlocality.
authors.affiliation: Laser Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia. qiankong317@gmail.com
authors.forename: Qian
authors.initials: Q
authors.lastname: Kong
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.forename: Ole
authors.initials: O
authors.lastname: Bang
authors.forename: Wiesław
authors.initials: W
authors.lastname: Krolikowski