Excitations of a Bose-Einstein condensate in a one-dimensional optical lattice

被引：0

作者：

Martikainen, J.-P. ^{[1
]}

Stoof, H.T.C. ^{[1
]}

机构：

[1] Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, Netherlands

来源：

Physical Review A - Atomic, Molecular, and Optical Physics | 2003年 / 68卷 / 01期

关键词：

Approximation theory - Atoms - Electron absorption - Equations of motion - Ground state - Hamiltonians - Lagrange multipliers - Laser beams - Magnetic field effects - Phase transitions - Photons - Variational techniques;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The band structure of the most important transverse collective excitations of a stack of two-dimensional Bose-Einstein condensates in a one-dimensional optical lattice with and without a vortex was calculated. The short-wavelength part of the excitation spectra was also calculated. Based on the results, predictions for the effective mass of the monopole and quadrupole modes were derived.

引用

页码：1 / 013610

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