Chaotic synchronization in Bose Einstein condensate of moving optical lattices via linear coupling

• 作者: 冯秀琴 姚治海 张志颖 贾洪洋
• 来源期刊: 中国物理B（英文版）
• 关键词: Bose-Einstein condensate linear coupling chaos synchronization Lyapunov stability theory
• 年，卷（期）: 2015,（11）
• 页码范围: 110503-1-110503-6
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/11/110503

摘要

A systematic study of the chaotic synchronization of Bose–Einstein condensed body is performed using linear cou-pling method based on Lyapunov stability theory, Sylvester’s criterion, and Gerschgorin disc theorem. The chaotic synchro-nization of Bose–Einstein condensed body in moving optical lattices is realized by linear coupling. The relationship be-tween the synchronization time and coupling coefficient is obtained. Both the single-variable coupling and double-variable coupling are effective. The results of numerical calculation prove that the chaotic synchronization of double-variable cou-pling is faster than that of single-variable coupling and small coupling coefficient can achieve the chaotic synchronization. Weak noise has little influence on synchronization effect, so the linear coupling technology is suitable for the chaotic synchronization of Bose–Einstein condensate.