title: Nonlocal dark solitons under competing cubic-quintic nonlinearities.
abstract: We investigate properties of dark solitons under competing nonlocal cubic-local quintic nonlinearities. Analytical results, based on a variational approach and confirmed by direct numerical simulations, reveal the existence of a unique dark soliton solutions with their width being independent of the degree of nonlocality, due to the competing cubic-quintic nonlinearities.
authors.affiliation: Department of Physics, Shanghai University, Shanghai 200444, China.
authors.forename: L
authors.initials: L
authors.lastname: Chen
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: M
authors.initials: M
authors.lastname: Shen
authors.forename: H
authors.initials: H
authors.lastname: Zhao
authors.forename: Y-Y
authors.initials: YY
authors.lastname: Lin
authors.forename: C-C
authors.initials: CC
authors.lastname: Jeng
authors.forename: R-K
authors.initials: RK
authors.lastname: Lee
authors.forename: W
authors.initials: W
authors.lastname: Krolikowski