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arXiv quant-ph/0609149quant-phcond-mat.other
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基于测量的量子计算新方案

Novel schemes for measurement-based quantum computation

D. Gross, J. Eisert

摘要:

我们建立了一个框架,它允许一个新的方案,基于测量的量子计算。该技术进一步开发了多体物理学的工具-基于相互关联或投影纠缠对态-超越了基于簇态的单向计算机。我们确定的资源状态,是从根本上不同的集群状态,因为它们表现出非零的关联函数,可以部分准备使用非最大纠缠功率门,或有非常不同的本地纠缠特性。在计算模型中,以不同的方式补偿随机性。结果表明,存在局部任意接近纯态的资源状态。最后,我们评论的可能性剪裁计算模型,以特定的物理系统,例如冷原子在光晶格。

英文摘要:

We establish a framework which allows one to construct novel schemes for measurement-based quantum computation. The technique further develops tools from many-body physics - based on finitely correlated or projected entangled pair states - to go beyond the cluster-state based one-way computer. We identify resource states that are radically different from the cluster state, in that they exhibit non-vanishing correlation functions, can partly be prepared using gates with non-maximal entangling power, or have very different local entanglement properties. In the computational models, the randomness is compensated in a different manner. It is shown that there exist resource states which are locally arbitrarily close to a pure state. Finally, we comment on the possibility of tailoring computational models to specific physical systems as, e.g. cold atoms in optical lattices.

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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