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Título:
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Controlled generation of coherent matter currents using a periodic driving field
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Autores:
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Creffield, Charles E. ;
Sols Lucía, Fernando
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2008-06-25
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física de materiales
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Materia = Ciencias: Física: Física del estado sólido
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Tipo = Artículo
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Resumen:
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We study the effect of a strong, oscillating driving field on the dynamics of ultracold boson held in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how the driving field can be used to produce and maintain a coherent atomic current by controlling the phase of the intersite tunneling processes. We investigate both the stroboscopic and time- averaged behavior using Floquet theory, and demonstrate that this procedure provides a stable and precise method of controlling coherent quantum systems.
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En línea:
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https://eprints.ucm.es/33121/1/Creffield%20C%2011%20LIBRE.pdf
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