期刊
PHYSICAL REVIEW A
卷 81, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.81.053627
关键词
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资金
- NSF
- ONR
- Keck Foundation
- Welch Foundation [C-1133]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo-Programa de Centros de Pesquisa e Inovacao (FAPESP-CEPID)
- Centro Nacional de Pesquisa e Fundacao de Amparo a Pesquisa do Estado de Sao Paulo-Programa de Insittutos Nacionais (CNPq/FAPESP-INCT)
- Centro de Aperfeicoamento de Ensino Superior (CAPES)
- Direct For Mathematical & Physical Scien
- Division Of Physics [0801457] Funding Source: National Science Foundation
We excite the lowest-lying quadrupole mode of a Bose-Einstein condensate by modulating the atomic scattering length via a Feshbach resonance. Excitation occurs at various modulation frequencies, and resonances located at the natural quadrupole frequency of the condensate and at the first harmonic are observed. We also investigate the amplitude of the excited mode as a function of modulation depth. Numerical simulations based on a variational calculation agree with our experimental results and provide insight into the observed behavior.
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