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Resonantly enhanced coherence by laser-assisted tunneling (1411.4096v1)
Published 15 Nov 2014 in cond-mat.quant-gas and physics.optics
Abstract: We study quantum coherence of strongly interacting cold bosons in a double-well potential driven by a laser field. The system is initially in a Fock state and, for either with or without a static tilting field, evolves into the coherent states. The coherence is resonantly enhanced by the photon-assisted tunneling. For the tilted wells, it reveals a two-branch pattern which corresponds to the multiple photon absorption or emission, respectively.
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