Chaotic Behavior of the Compound Nucleus and Other Mesoscopic Systems  

作　　者：Mahir S. Hussein 

机构地区：[1]Departamento de Fisica, instituto de Fisicamatematica, Univesidade de Sao Paulo, Sao Paul, Brasil

出　　处：《Journal of Physical Science and Application》2016年第1期6-6,共1页物理科学与应用（英文版）

摘　　要：It is well established that physical systems exhibit both ordered and chaotic behaviors. The atomic nucleus is such a system, where both collective and non-collective degrees of freedom are excited and studied using the shell model for the former and Random Matrix Theory for the latter. The chaotic behavior of nanostructure such as open quantum dots has been confirmed experimentally and discussed exhaustively theoretically. This is manifested through random fluctuations in the electronic conductance. What useful information can be extracted fi＇om this noise in the conductance？ In this contribution we shall address this question. In particular, we will show that the average maxima density in the conductance is directly related to the correlation function whose characteristic width is a measure of energy -- or applied magnetic field -- correlation length. The idea behind the above has been originally discovered in the context of the compound nucleus, a mesoscopic system. Our findings are directly applicable to graphene.

关 键 词：混沌行为 介观系统 复合核 随机矩阵理论 电子电导 纳米结构 随机波动 相关函数 

分 类 号：O413[理学—理论物理] TN624[理学—物理]