Oscillations of Bose-Einstein condensates in a one-dimensional optical superlattice

Chou Chun Huang, Wen Chin Wu

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)


Oscillations of atomic Bose-Einstein condensates in a 1D optical lattice with a two-point basis is investigated. In the low-frequency regime, four branches of modes are resolved, that correspond to the transverse in-phase and out-of-phase breathing modes, and the longitudinal acoustic and optical phonon modes of the condensates. Dispersions of these modes depend intimately on the values of two intersite Josephson tunneling strengths, J1 and J2, and the on-site repulsion U between the atoms. Observation of these mode dispersions is thus a direct way to access them.

期刊Physical Review A - Atomic, Molecular, and Optical Physics
出版狀態已發佈 - 2005 十二月

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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