Scaling analysis of the quasiparticle tunneling in the ${\mathbb Z}_k$ parafermion states

Qi Li; Na Jiang; Xin Wan; Zi-Xiang Hu

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arXiv · 1512.06329

Scaling analysis of the quasiparticle tunneling in the ${\mathbb Z}_k$ parafermion states

Qi Li·Na Jiang·Xin Wan·Zi-Xiang Hu

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Abstract

Quasiparticle tunneling between two counter-propagating edges through point contacts could provide information on the statistics of the quasiparticles. Previous study on a disk found a scaling behavior by varying the tunneling distance. It was found that in the limit with zero tunneling distance, the Abelian quasiparticles tunneling obey the scaling analysis while the non-Abelian quasiparticles exhibit some non-trivial behaviors on the scaling exponents. Because of the limitation of disk geometry, we put the fractional quantum Hall (FQH) state on the surface of a cylinder which has a larger tunable tunneling distance than that on disk by varying the aspect ratio $γ$. We analyze the scaling behavior of the quasiholes, especially the non-Abelian quasiholes in the Read-Rezayi ${\mathbb Z}_k$ parafermion states. We aim to address the existance of the anomalous correction of the scaling parameter in the long tunneling distance.

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Qi Li, Na Jiang, Xin Wan, Zi-Xiang Hu. 2015-12-20. Scaling analysis of the quasiparticle tunneling in the ${\mathbb Z}_k$ parafermion states. https://arxiv.org/abs/1512.06329

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