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arXiv 0712.2694quant-ph
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Kitaev格子自旋模型中阿贝尔任意子分数统计的实验模拟

Experimental simulation of fractional statistics of abelian anyons in the Kitaev lattice-spin model

Jiang-Feng Du, Jing Zhu, Ming-Guang Hu, Jing-Ling Chen

摘要:

在二维空间中,物理定律甚至允许任意子的存在,这些任意子表现出从玻色子到费米子连续变化的分数统计特性。他们负责分数量子霍尔效应,并提出了自然容错量子计算的候选人。尽管有这些显著的性质,任意子的分数统计从未在自然界中直接观察到。本文报道了在核磁共振系统上通过模拟第一Kitaev晶格自旋模型证明任意子的分数统计。我们将晶格自旋模型的四体相互作用编码为分子中伊辛自旋链的两体相互作用。因此,它可以有效地准备和操作的基态和激发的模型哈密顿量。这个便于操作和检测阿贝尔任意子的量子系统清楚地揭示了任意子的统计性质。从长远来看,我们对相互作用哈密顿量的实验对任意子的控制和应用也是有用的。

英文摘要:

In two-dimensions, the laws of physics even permit the existence of anyons which exhibit fractional statistics ranging continuously from bosonic to fermionic behaviour. They have been responsible for the fractional quantum Hall effect and proposed as candidates for naturally fault-tolerant quantum computation. Despite these remarkable properties, the fractional statistics of anyons has never been observed in nature directly. Here we report the demonstration of fractional statistics of anyons by simulation of the first Kitaev lattice-spin model on a nuclear magnetic resonance system. We encode four-body interactions of the lattice-spin model into two-body interactions of an Ising spin chain in molecules. It can thus efficiently prepare and operate the ground state and excitations of the model Hamiltonian. This quantum system with convenience of manipulation and detection of abelian anyons reveals anyonic statistical properties distinctly. Our experiment with interacted Hamiltonian could also prove useful in the long run to the control and application of anyons.

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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