非局域程度对空间暗孤子相互作用的影响  

Influence of nonlocalization degree on the interaction between spatial dark solitons

作　　者：高星辉[1,2] 杨振军[1] 周罗红[1] 郑一周[1] 陆大全[1] 胡巍[1] 

机构地区：[1]华南师范大学光子信息技术实验室,广州510631 [2]广州大学机械与电气工程学院,广州510006

出　　处：《物理学报》2011年第8期315-321,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10804033);广东省高等学校科技创新团队计划(批准号:06CXTD005);高等学校博士学科点专项科研基金(批准号:200805740002)资助的课题~~

摘　　要：对1+1维非局域自散焦介质中暗孤子的相互作用进行了研究.数值模拟结果表明:在非局域自散焦介质中,存在着暗孤子相互作用的临界点.在临界点上,吸引力等于排斥力;在临界点外,暗孤子间相互作用可能表现为相互吸引也可能表现为相互排斥.The interaction between dark solitons in nonlocal self-defocusing media is investigated.Numerical results show that there is a critical condition for interaction between dark solitons in nonlocal self-defocusing medium.Under the critical condition,dark solitons will neither attract nor repell each other because the attractive force and repulsive force between them are identical.Beyound the critical condition,dark solitons may attract or repell each other depending on the nonlocalization degree and distance between them.The value of the critical condition is found.

关 键 词：非局域自散焦 相互作用 暗孤子 

分 类 号：O437[机械工程—光学工程]