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arXiv 1006.3532cond-mat.str-elcond-mat.mes-hallquant-ph
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用张量网络算法模拟任意子

Simulation of anyons with tensor network algorithms

Robert N. C. Pfeifer, Philippe Corboz, Oliver Buerschaper, Miguel Aguado, Matthias Troyer, Guifre Vidal

摘要:

任意子相互作用系统由于其非平凡的交换统计,对凝聚态模拟提出了独特的挑战。这些系统具有强大的通用量子计算的潜力,因此引起了人们的极大兴趣,但研究它们的数值工具仍然有限。我们将展示现有的张量网络算法如何适用于任意子系统,并演示了这个过程的1-D多尺度纠缠重正化分析(MERA)。我们将MERA应用于相互作用的斐波那契任意子的无限链,计算它们的标度维数和局部标度算子。所得到的标度维数与共形场论一致。所开发的技术适用于任何张量网络算法,并且能够适应这些ansaetze用于任意子系统,为一维和二维自由和相互作用的任意子的大型系统的数值模拟打开了大门。

英文摘要:

Interacting systems of anyons pose a unique challenge to condensed matter simulations due to their non-trivial exchange statistics. These systems are of great interest as they have the potential for robust universal quantum computation, but numerical tools for studying them are as yet limited. We show how existing tensor network algorithms may be adapted for use with systems of anyons, and demonstrate this process for the 1-D Multi-scale Entanglement Renormalisation Ansatz (MERA). We apply the MERA to infinite chains of interacting Fibonacci anyons, computing their scaling dimensions and local scaling operators. The scaling dimensions obtained are seen to be in agreement with conformal field theory. The techniques developed are applicable to any tensor network algorithm, and the ability to adapt these ansaetze for use on anyonic systems opens the door for numerical simulation of large systems of free and interacting anyons in one and two dimensions.

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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