title: Multigap discrete vector solitons.
abstract: We analyze nonlinear collective effects in periodic systems with multigap transmission spectra such as light in waveguide arrays or Bose-Einstein condensates in optical lattices. We reveal that the interband interactions in nonlinear periodic structures can be efficiently managed by controlling their geometry. We predict novel types of discrete vector solitons supported by nonlinear coupling between different band gaps and study their stability.
authors.affiliation: Nonlinear Physics Group and Centre for Ultra-high Bandwidth Devices for Optical Systems (CUDOS), Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia.
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Sukhorukov
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar