物理学报Issue(22)：225202-1-225202-5,5.DOI:10.7498/aps.62.225202
基于高斯型脉冲的非线性Ramsey干涉
Nonlinear Ramsey interference with Gaussian pulse
摘要
Abstract
According to the theory of nonlinear Rosen-Zener tunneling, we investigate the nonlinear Ramsey interference of Bose-Einstein condensate in a double-well potential with Gaussian pulse. Rich Ramsey fringes are shown by the numerical simulations. The influ-ences on the fringes of the atom-atom interaction and the period of Gaussian pulse are discussed. We obtain the analytical expression for the fundamental frequency of Ramsey fringes by using Hamilton equation. The relation of the frequency to the interaction strength and the Gaussian-pulse period is found by analyzing the fringes through Fourier transformation. The numerical simulations are consistent with our theoretical predictions.关键词
玻色-爱因斯坦凝聚/Ramsey干涉/高斯型脉冲Key words
Bose-Einstein condensate/Ramsey interference/Gaussian pulse引用本文复制引用
陈超,田钢,于术娟,杨世平..基于高斯型脉冲的非线性Ramsey干涉[J].物理学报,2013,(22):225202-1-225202-5,5.基金项目
河北省自然科学基金(批准号:A2010000343)资助的课题.*Project supported by the Natural Science Foundation of Hebei Province, China (Grant No. A2010000343) （批准号:A2010000343）
