Gravity-induced Wannier-Stark ladder in an optical lattice

J. Zapata; A. M. Guzmán; M. G. Moore; P. Meystre

doi:10.1103/PhysRevA.63.023607

Gravity-induced Wannier-Stark ladder in an optical lattice

J. Zapata, A. M. Guzmán, M. G. Moore, P. Meystre

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A Floquet representation of the Wannier atomic states was employed for the calculation of Wannier-Stark ladders induced by gravity on atoms in optical lattices. The widths of the Wannier-Stark ladder of resonances were obtained by the dynamics of ultracold atoms in an optical potential. The rate transition to the continuum was obtained by the width of the resonances. A physical model was developed for the Wannier states including the eigenstates of the system in the absence of gravitational field.

Original language	English (US)
Pages (from-to)	23607-23601
Number of pages	7
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	63
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.63.023607
State	Published - Feb 2001
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.63.023607

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Gravity-induced Wannier-Stark ladder in an optical lattice

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