Splitting in the excitation spectrum of a Bose-Einstein condensate undergoing strong Rabi oscillations

E. Rowen*, R. Ozeri, N. Katz, E. Gershnabel, N. Davidson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We report on a measurement of splitting in the excitation spectrum of a condensate driven by an optical traveling wave. Experimental results are compared to a numerical solution of the Gross-Pitaevskii equation, and analyzed by a simple two-level model and by the more complete band theory, treating the driving beams as an optical lattice. In this picture, the splitting is a manifestation of the energy gap between neighboring bands that opens on the boundary of the Brillouin zone.

Original languageAmerican English
Article number053614
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume72
Issue number5
DOIs
StatePublished - Nov 2005
Externally publishedYes

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