Twisted localized modes - art. no. 036603

In a number of recent papers the so-called twisted localized mode of the di screte nonlinear Schrodinger equation has been proposed. Herein, we study t he existence and stability properties of such modes. We analyze the persist ence of quasiperiodic modes and study the domains of existence and numerica l stability of the exact form of such solutions. We identify the bifurcatio ns through which they lose their stability and follow the behavior of the i ntrinsic localized modes and their eigenmodes even in the unstable regime.