节点文献
光子纠缠操纵及其应用
Photonic Entanglement Manipulation and Applications
【作者】 张强；
【作者基本信息】 中国科学技术大学 ， 原子分子物理， 2006， 博士
【摘要】 本论文主要内容是对光子纠缠源的产生，操纵以及其在量子信息上的应用进行的实验研究。 我们在实验上进一步发展了多光子纠缠源技术。利用光参量下转换产生的纠缠光子对和线性光学手段，我们在国际上首次实验实现了六光子干涉和两光子复合系统的量子态隐形传输；我们首次实验实现了四维纠缠光子对制备并在此基础上对两光子GHZ定理进行了检验；我们首次实验实现了纠缠光子对的同步；我们首次在实验上实现了容错量子密码。 除了在实验上的研究之外，我们也发现了基于盲基矢的量子密码的安全性漏洞，并且给出了改进方案。 我们在实验中发展起来的技术将在未来的远程量子通讯，线性光学量子计算，量子力学基础检验等重要科学问题的研究中起到重要作用。
【Abstract】 The present dissertation is mainly about experimental generation, manipulation of multi-photon entanglement and its applications in quantum information.We have further developed the multi-photon interference techniques. By making use of polarization entangled photon pairs via parametric down-conversion and linear optics, in this dissertation, we report for the first time the experimental realization of quantum teleportation a composite system, of four-dimension entanglement and the test of two photon GHZ theorem, of synchronization of entangled photon paris, and of fault-tolerant quantum key distribution.Besides for the experimental research, in the end of the thesis we also report a flaw of the quantum key distribution protocol based on blind bases and a feasible solution to it.The techniques developed in this dissertation would dramatically facilitate progresses in many important fields of scientific research, including long distance quantum communication, linear optics quantum computation and test of the foundation of quantum mechanics.