arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.4162quant-phphysics.comp-phphysics.optics
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基于实验测量的超团簇态量子计算

Experimental measurement-based quantum computing beyond the cluster-state model

Wei-Bo Gao, Xing-Can Yao, Jian-Ming Cai, He Lu, Ping Xu, Tao Yang, Chao-Yang Lu, Yu-Ao Chen, Zeng-Bing Chen, Jian-Wei Pan

摘要:

基于测量的量子计算范式为实现量子计算机开辟了新的实验途径,并加深了我们对量子物理的理解。基于测量的量子计算从高度纠缠的通用资源态开始。多年来,集群国家一直是唯一已知的普遍资源。令人惊讶的是,一种新的框架--关联空间中的量子计算为基于具有不同于团簇态的纠缠特性的量子态实现基于测量的量子计算开辟了新的途径。在这里,我们报告这样一个模型的每个组成部分的实验演示。利用不同于团簇态的四量子比特态和六量子比特态,我们实现了一组通用的单量子比特旋转、双量子比特纠缠门和进一步的Deutsch算法。除了基本的兴趣之外,我们的实验在原则上证明了不使用簇态的通用基于测量的量子计算的可行性,这代表了实现量子计算机的新方法。

英文摘要:

The paradigm of measurement-based quantum computation opens new experimental avenues to realize a quantum computer and deepens our understanding of quantum physics. Measurement-based quantum computation starts from a highly entangled universal resource state. For years, clusters states have been the only known universal resources. Surprisingly, a novel framework namely quantum computation in correlation space has opened new routes to implement measurement-based quantum computation based on quantum states possessing entanglement properties different from cluster states. Here we report an experimental demonstration of every building block of such a model. With a four-qubit and a six-qubit state as distinct from cluster states, we have realized a universal set of single-qubit rotations, two-qubit entangling gates and further Deutsch's algorithm. Besides being of fundamental interest, our experiment proves in-principle the feasibility of universal measurement-based quantum computation without using cluster states, which represents a new approach towards the realization of a quantum computer.

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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