title: Three-dimensional spatiotemporal optical solitons in nonlocal nonlinear media.
abstract: We demonstrate the existence of stable three-dimensional spatiotemporal solitons (STSs) in media with a nonlocal cubic nonlinearity. Fundamental (nonspinning) STSs forming one-parameter families are stable if their propagation constant exceeds a certain critical value that is inversely proportional to the range of nonlocality of nonlinear response. All spinning three-dimensional STSs are found to be unstable.
authors.affiliation: National Institute of Physics and Nuclear Engineering, Institute of Atomic Physics, Department of Theoretical Physics, P.O. Box MG-6, Bucharest, Romania.
authors.forename: D
authors.initials: D
authors.lastname: Mihalache
authors.forename: D
authors.initials: D
authors.lastname: Mazilu
authors.forename: F
authors.initials: F
authors.lastname: Lederer
authors.forename: B A
authors.initials: BA
authors.lastname: Malomed
authors.forename: Y V
authors.initials: YV
authors.lastname: Kartashov
authors.forename: L-C
authors.initials: LC
authors.lastname: Crasovan
authors.forename: L
authors.initials: L
authors.lastname: Torner