Band Structure of Bose-Einstein Condensates in a Cavity-Mediated Triple-Well System

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2013,（2）
• 页码范围: 135-138
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/30/2/024211

摘要

Cavity-mediated Bose-Einstein condensates (BECs) systems,[1-5] particularly the system of BEC trapped in a double well (DW) coupling to a driven cavity mode,have been theoretically investigated in recent years.[6-8] It is found that the cavity-field alters the locations and the amount of stationary points and causes new motional modes of the Bose-Josephson junction (B J J),and the causation of these phenomena is the nonlinearity of cavity-field-induced tilt.[6]It is also shown that the cavity mode not only interacts with the condensates and modifies their motions,but also carries the population information of the atoms as the intra-cavity-photons leaking out of the cavity.Therefore,the nonlinearity arising from atomcavity field interaction can promote the Josephson oscillation and has an important role in causing the pseudo-self-trapping,self-organization and collapserevival adequately.