Why the Afshar experiment does not refute complementarity

A modified version of Young's experiment by Shahriar Afshar demonstrates that, prior to what appears to be a “which-way” measurement, an interference pattern exists. Afshar has claimed that this result constitutes a violation of the Principle of Complementarity. This paper discusses the implications of this experiment and considers how Cramer's Transactional Interpretation easily accommodates the result. It is also shown that the Afshar experiment is analogous in key respects to a spin one-half particle prepared as “spin up along x”, subjected to a nondestructive confirmation of that preparation, and post-selected in a specific state of spin along z. The terminology “which-way” or “which-slit” is critiqued; it is argued that this usage by both Afshar and his critics is misleading and has contributed to confusion surrounding the interpretation of the experiment. Nevertheless, it is concluded that Bohr would have had no more problem accounting for the Afshar result than he would in accounting for the aforementioned pre- and post-selection spin experiment, in which the particle's preparation state is confirmed by a nondestructive measurement prior to post-selection. In addition, some new inferences about the interpretation of delayed choice experiments are drawn from the analysis.     

满足互补原理的半单复合模型

本文系统分析了SU(N)×SO(M)半单超色群的手征三前子模型.我们发现:SU(3)×SO(5)模型满足互补原理要求;由′tHooft方程及Bars条件可以给出三代夸克、轻子谱;超色群G_(MC)和规范色味子群G_(CF)都是渐近自由的,因此可以构造出具有低的超色禁闭标度A_(MC)的现实模型.我们还发现,本模型中存在二个超色标度.在这两个标度之间,模型类似于费米——玻色模型,这可以简化前子的动力学.     

信息系统主要开发方法基本思想的比较研究

本文试图通过对三种信息系统主要开发方法基本思想的比较研究,力求揭示出它们之间的主要区别和某些联系,并依此对比较研究得出的几个结论做出某种新的阐释     

广义向量F-隐拟变分不等式与相应相补问题

介绍了实拓扑向量空间中一类广义向量F一隐拟变分不等式问题,在适当的没有单调性和连续性的假定下,利用广义KKM定理证明了其解的存在性,并在一定条件下讨论了此类变分不等式问题与其相应的相补问题的解的等价性,推广了一些结果。     

广义互补问题的正则化牛顿算法

首先将定义在闭凸多面锥上的广义互补问题(GNCP)转化为一个等价的非线性方程组,然后利用正则化牛顿算法来求解此非线性方程组,并建立了算法的超线性(二阶)收敛性.     

集值不动点定理与Banach空间中的相补问题

本文应用H-空间中得到的集值不动点定理,研究了Banach空间中的相补问题。     

论国家财政新型科技投入体系“三制一体”的互补性

介绍了国家财政新型科技投入体系“三制一体”的基本架构,并着重阐述了拟成果购买制的体制框架。从论证互补的角度分析了拟成果购买制、课题制、事业拨款制的特点,以及三种制度在实际操作中的相互协同、优势互补。     

向量值函数的Hardy空间的几何性质

本文讨论向量位函数的H~p空间的几何性质,包括凸性、光滑性、范数可微性、可补性及对偶性,得到了一系列重要结果。     

半单复合模型动力学研究

对于具有半单超色群的复合模型。本文给出了互补原理与Higgs相分析的一种简洁的动力学方案:即组成半单超色群的各个单群的凝聚次序由临界耦合决定。应用Higgs相分析我们可以决定复合费米子的整体对称性。最后,整体对称性将被规范化成为复合粒子的低能动力学定域对称群。