Now showing items 1-6 of 6

  • Bose-Einstein condensates with localized spin-orbit coupling: Soliton complexes and spinor dynamics 

    Kartashov, Yaroslav; Konotop, Vladimir V; Zezyulin, Dmitry A (2014-12-15)
    Article
    Open Access
    Spin-orbit (SO) coupling can be introduced in a Bose-Einstein condensate (BEC) as a gauge potential acting only in a localized spatial domain. The effect of such a SO “defect” can be understood by transforming the system to ...
  • Compactons and bistability in exciton-polariton condensates 

    Kartashov, Yaroslav V.; Konotop, Vladimir V; Torner Sabata, Lluís (2012-11-15)
    Article
    Open Access
    We address stationary patterns in exciton-polariton condensates supported by a narrow external pump beam, and we discover that even in the absence of trapping potentials, such condensates may support stable localized stationary ...
  • Gap solitons in a spin-orbit-coupled bose-einstein condensate 

    Kartashov, Yaroslav V.; Konotop, Vladimir V; Abdullaev, Fatkhulla Kh (2013-08)
    Article
    Open Access
    We report a diversity of stable gap solitons in a spin-orbit-coupled Bose-Einstein condensate subject to a spatially periodic Zeeman field. It is shown that the solitons can be classified by the main physical symmetries ...
  • Hybrid bloch-anderson localization of light 

    Stützer, Simon; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Konotop, Vladimir V; Nolte, Stefan; Torner Sabata, Lluís; Szameit, Alexander (2013-04-26)
    Article
    Restricted access - publisher's policy
    We investigate the interplay of Bloch oscillations and Anderson localization in optics. Gradual washing out of Bloch oscillations and the formation of nearly stationary averaged intensity distributions, which are symmetric ...
  • Light localization in nonuniformly randomized lattices 

    Kartashov, Yaroslav; Konotop, Vladimir V; Vysloukh, Victor A.; Torner Sabata, Lluís (2012)
    Article
    Restricted access - publisher's policy
    We address Anderson localization of light in disordered optical lattices where the disorder strength varies across the transverse direction. Such variation changes the preferred domains where formation of localized eigenmodes ...
  • Method to generate complex quasinondiffracting optical lattices 

    López Aguayo, Servando; Konotop, Vladimir V; Kartashov, Yaroslav; Torner Sabata, Lluís (2010-07-02)
    Article
    Open Access
    We put forward a powerful technique that allows generating quasi-non-diffracting light beams with a variety of complex transverse shapes and topologies. We show that, e.g., spi-raling patterns, patterns featuring curved ...