Soliton complexes and flat-top nonlinear modes in optical lattices |
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| Authors: | TJ Alexander YS Kivshar |
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| Institution: | (1) Nonlinear Physics Center and Australian Center for Quantum-Atom Optics (ACQAO), Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT, 0200, Australia |
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| Abstract: | We describe a continuous analog of the quasirectangular flat-top nonlinear modes earlier found for discrete nonlinear models.
We show that these novel nonlinear modes can be understood as multi-soliton complexes with either in-phase or out-of-phase
neighboring solitons trapped by the periodic potential of the lattice. We demonstrate a link between the flat-top states and
the truncated nonlinear Bloch waves, and discuss how these nonlinear localized modes can be monitored experimentally in photonics
and Bose–Einstein condensates.
PACS 42.65.Tg; 42.65.Jx; 03.75.Lm |
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