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arXiv 1404.4433quant-ph
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量子图与量子网络

Quantum Diagrams and Quantum Networks

Louis H. Kauffman, Samuel J. Lomonaco

摘要:

本文介绍了表示量子过程和量子计算的图解方法。我们回顾了量子信息和量子计算的基本概念。我们讨论了拓扑图和用范畴论表示量子计算和隐形传态的一些问题。我们非常仔细地分析了图形的意义通常表示的马赫-曾德尔干涉仪,我们展示了它如何可以推广到关联到每个组成的酉变换的“实验室量子图”,使粒子移动通过许多交替的路径在这个图将模仿量子过程所代表的酉变换的组成。这是考虑费曼路径积分的有限维方法。我们称我们的表示结果为路径定理。然后,我们回到网络和矩阵的基础知识,并展示如何用网络图来表示量子测量的元素。

英文摘要:

This paper is an introduction to diagrammatic methods for representing quantum processes and quantum computing. We review basic notions for quantum information and quantum computing. We discuss topological diagrams and some issues about using category theory in representing quantum computing and teleportation. We analyze very carefully the diagrammatic meaning of the usual representation of the Mach-Zehnder interferometer, and we show how it can be generalized to associate to each composition of unitary transformations a "laboratory quantum diagram" such that particles moving though the many alternate paths in this diagram will mimic the quantum process represented by the composition of unitary transformations. This is a finite dimensional way to think about the Feynman Path Integral. We call our representation result the Path Theorem. Then we go back to the basics of networks and matrices and show how elements of quantum measurement can be represented with network diagrams.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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