Ara es mostren els items 10-25 de 25

    • Robust soliton clusters in media with competing cubic and quintic nonlinearities 

      Mihalache, Dumitru; Mazilu, D; Crasovan, L.C.; Malomed, Boris A.; Lederer, F; Torner Sabata, Lluís (2003-10)
      Article
      Accés restringit per política de l'editorial
      Systematic results are reported for dynamics of circular patterns (“necklaces”), composed of fundamental solitons and carrying orbital angular momentum, in the two-dimensional model, which describes the propagation of light ...
    • Rotating vortex clusters in media with inhomogeneous defocusing nonlinearity 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Vysloukh, Victor A.; Belic, Milivoj R.; Torner Sabata, Lluís (2017-02-01)
      Article
      Accés obert
      We show that media with inhomogeneous defocusing cubic nonlinearity growing toward the periphery can support a variety of stable vortex clusters nested in a common localized envelope. Nonrotating symmetric clusters are ...
    • Self-trapping and splitting of bright vector solitons under inhomogeneous defocusing nonlinearities 

      Kartashov, Yaroslav; Vysloukh, Victor A.; Torner Sabata, Lluís; Malomed, Boris A. (2011-12-01)
      Article
      Accés restringit per política de l'editorial
      We show that bimodal systems with a spatially nonuniform defocusing cubic nonlinearity, whose strength grows toward the periphery, can support stable two-component solitons. For a sufficiently strong cross-phase-modulation ...
    • Soliton gyroscopes in media with spatially growing repulsive nonlinearity 

      Driben, Rodislav; Kartashov, Yaroslav; Malomed, Boris A.; Meier, Torsten; Torner Sabata, Lluís (2014-01-15)
      Article
      Accés obert
      We find that the recently introduced model of self-trapping supported by a spatially growing strength of a repulsive nonlinearity gives rise to robust vortex-soliton tori, i.e., three-dimensional vortex solitons, with ...
    • Solitons in nonlinear lattices 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Torner Sabata, Lluís (2011-04-14)
      Article
      Accés restringit per política de l'editorial
      This article offers a comprehensive survey of results obtained for solitons and complex nonlinear wave patterns supported by purely nonlinear lattices (NLs), which represent a spatially periodic modulation of the local ...
    • Solitons supported by spatially inhomogeneous nonlinear losses 

      Borovkova, Olga V.; Kartashov, Yaroslav; Vysloukh, Victor A.; Lobanov, Valery E.; Malomed, Boris A.; Torner Sabata, Lluís (2012)
      Article
      Accés restringit per política de l'editorial
      We uncover that, in contrast to the common belief, stable dissipative solitons exist in media with uniform gain in the presence of nonuniform cubic losses, whose local strength grows with coordinate η (in one dimension) ...
    • Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Konotop, Vladimir V.; Lobanov, Valery E.; Torner Sabata, Lluís (OSA, 2015-03-11)
      Article
      Accés obert
      We introduce a mechanism to stabilize spatiotemporal solitons in Kerr nonlinear media, based on the dispersion of linear coupling between the field components forming the soliton states. Specifically, we consider solitons ...
    • Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Konotop, Vladimir V.; Lobanov, Valery E.; Torner Sabata, Lluís (2015-03-15)
      Article
      Accés obert
      We introduce a mechanism to stabilize spatiotemporal solitons in Kerr nonlinear media, based on the dispersion of linear coupling between the field components forming the soliton states. Specifically, we consider solitons ...
    • Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Konotop, Vladimir V; Lobanov, Valery E.; Torner Sabata, Lluís (2015-03-15)
      Article
      Accés restringit per política de l'editorial
      We introduce a mechanism to stabilize spatiotemporal solitons in Kerr nonlinear media, based on the dispersion of linear coupling between the field components forming the soliton states. Specifically, we consider solitons ...
    • Stable bright and vortex solitons in photonic crystal fibers with inhomogeneous defocusing nonlinearity 

      Lobanov, Valery E.; Borovkova, Olga V.; Kartashov, Yaroslav V.; Malomed, Boris A.; Torner Sabata, Lluís (2012-06-01)
      Article
      Accés restringit per política de l'editorial
      We predict that a photonic crystal fiber whose strands are filled with a defocusing nonlinear medium can support stable bright solitons and also vortex solitons if the strength of the defocusing nonlinearity grows toward ...
    • Stable spinning optical solitons in three dimensions 

      Mihalache, D D Mazilu I Towers; Mazilu, Dumitru; Crasovan, L.C.; Towers, I.; Buryak, A.V.; Malomed, Boris A.; Torner Sabata, Lluís; Pérez Torres, Juan; Lederer, F. (2002-02)
      Article
      Accés restringit per política de l'editorial
      We introduce spatiotemporal spinning solitons (vortex tori) of the three-dimensional nonlinear Schrödinger equation with focusing cubic and defocusing quintic nonlinearities. The first ever found completely stable ...
    • Three-dimensional droplets of swirling superfluids 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Tarruell, Leticia; Torner Sabata, Lluís (American Physical Society (APS), 2018-07-12)
      Article
      Accés obert
      A new method for the creation of 3D solitary topological modes, corresponding to vortical droplets of a two-component dilute superfluid, is presented. We use the recently introduced system of nonlinearly coupled Gross-Pitaevskii ...
    • Three-dimensional hybrid vortex solitons 

      Driben, Rodislav; Kartashov, Yaroslav; Malomed, Boris A.; Meier, Torsten; Torner Sabata, Lluís (2014-06-16)
      Article
      Accés obert
      We show, by means of numerical and analytical methods, that media with a repulsive nonlinearity which grows from the center to the periphery support a remarkable variety of previously unknown complex stationary and dynamical ...
    • Twisted toroidal vortex solitons in inhomogeneous media with repulsive nonlinearity 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Shnir, Yasha; Torner Sabata, Lluís (2014-12-24)
      Article
      Accés obert
      Toroidal modes in the form of so-called Hopfions, with two independent winding numbers, a hidden one (twist s), which characterizes a circular vortex thread embedded into a three-dimensional soliton, and the vorticity ...
    • Unbreakable PT symmetry of solitons supported by inhomogeneous defocusing nonlinearity 

      Kartashov, Yaroslav; Malomed, Boris A.; Torner Sabata, Lluís (OSA, 2014-09-24)
      Article
      Accés obert
    • Unbreakable PT symmetry of solitons supported by inhomogeneous defocusing nonlinearity 

      Kartashov, Yaroslav V.; Malomed, Boris A.; Torner Sabata, Lluís (2014-09-01)
      Article
      Accés restringit per política de l'editorial
      We consider bright solitons supported by a symmetric inhomogeneous defocusing nonlinearity growing rapidly enough toward the periphery of the medium, combined with an antisymmetric gain-loss profile. Despite the absence ...