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Nonlinear dynamics of wave packets in PT-symmetric optical lattices near the phase transition point (1208.5995v1)
Published 29 Aug 2012 in physics.optics and nlin.PS
Abstract: Nonlinear dynamics of wave packets in PT-symmetric optical lattices near the phase-transition point are analytically studied. A nonlinear Klein-Gordon equation is derived for the envelope of these wave packets. A variety of novel phenomena known to exist in this envelope equation are shown to also exist in the full equation including wave blowup, periodic bound states and solitary wave solutions.