Browsing Mathematics, Statistics & Physics by Subject "Nonlinear optics"

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    • Dark solitons near potential and nonlinearity steps 

      F., Tsitoura; Z.A., Anastassi; J.L., Marzuola; P.G., Kevrekidis; D.J., Frantzeskakis ( American Physical Society , 2016 , Article)
      We study dark solitons near potential and nonlinearity steps and combinations thereof, forming rectangular barriers. This setting is relevant to the contexts of atomic Bose-Einstein condensates (where such steps can be ...

    • Spatiotemporal algebraically localized waveforms for a nonlinear Schrödinger model with gain and loss 

      Anastassi, Z.A.; Fotopoulos, G.; Frantzeskakis, D.J.; Horikis, T.P.; Karachalios, N.I.; ... more authors ( Elsevier B.V. , 2017 , Article)
      We consider the asymptotic behavior of the solutions of a nonlinear Schrödinger (NLS) model incorporating linear and nonlinear gain/loss. First, we describe analytically the dynamical regimes (depending on the gain/loss ...