Matter-wave gap solitons in atomic band-gap structures
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The interaction of BEC with the lattice potential that was analogous to the light scattering by a nonlinear photonic band-gap structure was demonstrated. The properties of two-dimensional atomic band gap structures was studied and demonstrated the existence of gap solitons, the spatially localized states of BEC existing in the gaps of the matter-wave spectrum. It was believed that the analogy between the physics of BEC in optical lattices and photonic crystals can be useful for revealing many novel features of the matter-wave dynamics in reconfigurable atomic band-gap structures.
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Physical Review Letters