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arXiv 1002.1567quant-ph
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基于普适测量计算的量子态约简

Quantum state reduction for universal measurement based computation

Xie Chen, Runyao Duan, Zhengfeng Ji, Bei Zeng

摘要:

基于测量的量子计算(MBQC)是量子计算机物理实现的最有前途的模型之一,它只需要对一个普适的资源状态进行单粒子测量就可以实现量子计算的全部功能。尽管在过去的十年里取得了相当大的进展,但寻找新的具有自然产生的哈密顿量的普适资源态,以及更好地理解这类态的纠缠结构仍然是一个巨大的挑战。在这里,我们表明,目前已知的大多数资源状态可以减少到集群状态,第一个已知的通用资源状态,通过自适应本地测量在一个恒定的成本。这种新的量子态约化方案为资源态的普适性提供了更简单的证明,并为寻找新的资源态开辟了广阔的空间,包括[Commun. Math.Phys.144,443(1992)]。Fannes等人,大约20年前。

英文摘要:

Measurement based quantum computation (MBQC), which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising models for the physical realization of quantum computers. Despite considerable progress in the last decade, it remains a great challenge to search for new universal resource states with naturally occurring Hamiltonians, and to better understand the entanglement structure of these kinds of states. Here we show that most of the resource states currently known can be reduced to the cluster state, the first known universal resource state, via adaptive local measurements at a constant cost. This new quantum state reduction scheme provides simpler proofs of universality of resource states and opens up plenty of space to the search of new resource states, including an example based on the one-parameter deformation of the AKLT state studied in [Commun. Math. Phys. 144, 443 (1992)] by M. Fannes et al. about twenty years ago.

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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