量子相干网络  

Quantum Interference Network

作　　者：毕桥[1] 柳贵平[1] 李永 

机构地区：[1]武汉理工大学理学院,湖北武汉430070 [2]中国原子能研究院核技术研究所,北京102413

出　　处：《广西师范大学学报（自然科学版）》2008年第1期1-6,共6页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金重点资助项目(70431002);武汉理工大学2007科研启动基金资助项目;中国原子能研究院院长基金资助项目

摘　　要：利用具有选择性的分子束外延方法,一种六角纳米线网络可以生长在(111)B基体面上,且用纳米孔铝土模板可以生长有序的纳米线。这些进展激发人们思考利用纳米线来实现一种量子相干网络,该网络可测量电子电流同辐射场的相互作用;可以探索量子相干网络的特征;分析表明:影响量子相干网络功能取决于电子在网络对称联接线中最后的相对速度。网络的级数越高,则允许相对速度被增加,具有放大量子相干的作用。纳米线的量子相干网络联接分布的时间演变类似于幂函数法则,但不尽相同,这是因为连接线分布同网络的能级分布的泛函有关而不是一个常数。所以度分布的公式也表明该网络的动力学性质与其拓扑性质共同影响度分布的演化。By selective molecular beam epitaxy,the hexagonal nano-wire networks can be grown on （111） B substrates ,as well as well-ordered nano-wires with narrow diameter distribution through nano-channel alumina templates. This progress motivates one to think of using nano-wires to realize a quantum interference network. This network can allow one to measure interaction between electronic current and radiation field and explore characteristic of quantum interference for the network. Further theoretical analysis indicated that the quantum interference effect in the network is determined by the relative velocity of electronic density in the network that is symmetrically connected to the final output nodes. The network progression is higher,and then it allows the relative velocity to increase and has enlargement quantum coherent function. The network degree distribution evolution seems to be governed by the power law ,but not exactly,this is because connectivity distribution is related to the energy level distribution but not a constant. The degree distribution formula also indicates that the kinetic and the topological properties of this network commonly affect the degree distribution evolution.

关 键 词：量子相干网络 纳米网络 量子相干 联接度分布 

分 类 号：O413.2[理学—理论物理]