物理学报Issue(6)：1-7,7.DOI:10.7498/aps.64.064202
电磁诱导透明系统中的暗孤子∗
Dark soliton in the system of electromagnetically induced transparency
摘要
Abstract
The formation environment and the evolution of dark soliton with environment parameters are investigated by using the electromagnetically induced transparency effect produced high dispersion and nonlinearity. To improve the stability and operability, a dual-well semiconductor is used. Combining the quantum theory and the classical field theory, we derive the nonlinear Schrodinger equation to describe the formations and evolutions of wave and soliton. It is demonstrated that the dark soliton can form and propagate in the medium when the medium is anomalously dispersive and cross phase modulation is negative simultaneously, and that in the evolution of the soliton, the width, gray scale and phase are related to each other, the smaller the pulse duration, the bigger the gray scale is and the faster the growth is. In addition, the modulation instability of the nonlinear system is analyzed, and the gain spectrum of the nonlinear system is also discussed.关键词
暗孤子/电磁诱导透明/调制不稳定性Key words
dark soliton/electromagnetically induced transparency/modulation instability引用本文复制引用
杜英杰,谢小涛,杨战营,白晋涛..电磁诱导透明系统中的暗孤子∗[J].物理学报,2015,(6):1-7,7.基金项目
国家重点基础研究发展计划(批准号:2010CB434811)和国家自然科学基金(批准号:11047025)资助的课题.* Project supported by the National Basic Research Program of China (Grant No.2010CB434811), and the National Natural Science Foundation of China (Grant No.11047025) （批准号:2010CB434811）
