TY - JOUR
T1 - Splitting in the excitation spectrum of a Bose-Einstein condensate undergoing strong Rabi oscillations
AU - Rowen, E.
AU - Ozeri, R.
AU - Katz, N.
AU - Gershnabel, E.
AU - Davidson, N.
PY - 2005/11
Y1 - 2005/11
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=28844436036&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.72.053614
DO - 10.1103/PhysRevA.72.053614
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AN - SCOPUS:28844436036
SN - 1050-2947
VL - 72
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 053614
ER -