开放一维自旋S=1/2系统中的动力学普适类  

Dynamical Universality in an Opened Spin-1/2 Chain

作　　者：任杰 REN Jie(School of Electronic and Information Engineering,Changshu Institute of Technology,Changshu 215500,China)

机构地区：[1]常熟理工学院电子信息工程学院,江苏常熟215500

出　　处：《常熟理工学院学报》2020年第5期11-13,共3页Journal of Changshu Institute of Technology

摘　　要：研究了一维噪声量子磁性模型的长期动力学,发现系统手噪声的影响不可避免地被驱动到一个无限的温度状态,但是其弛豫动力学可以表现为丰富的普遍类.研究了外部无序磁场、相互作用以及守恒定律对系统长期动力学的影响,并讨论了它们与当前超冷原子实验的相关性.In this paper,we study the longtime dynamics of a one-dimensional noisy q to an infinite temperature state,and the relaxation dynamics towards such a featureless state,which can be highly nontrivial and universal.The effects of disorder,interaction,quantum magnetic model,the system,which is inevitably driven as well as the conservation law on the longtime dynamics of the systems have been studied,and their relevance with current ultracold atomic experiments has been discussed.

关 键 词：动力学普适类 密度矩阵重整化群 非对角关联函数 反铁磁序 

分 类 号：O469[理学—凝聚态物理] O413.3[理学—电子物理学]