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arXiv 0707.4474cond-mat.mes-hall
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非阿贝尔$ν=5/2$量子霍尔干涉仪中的体边耦合

Bulk-edge coupling in the non-abelian $ν=5/2$ quantum Hall interferometer

B. Rosenow, B. I. Halperin, S. H. Simon, Ady Stern

摘要:

最近的计划,实验探测非阿贝尔统计的量子霍尔效应是基于几何形状,其中携带电流的准粒子沿边缘环绕散装准粒子,这是本地化。在这里,我们考虑这样一个计划,法布里-珀罗干涉仪,并分析其干涉图案是如何影响的耦合,允许隧道之间的散装和边缘的中性马约拉纳费米子。虽然在弱耦合这种隧穿退化的干扰信号,我们发现,在强耦合,散装准粒子成为基本上被边缘吸收和干涉信号被完全恢复。

英文摘要:

Recent schemes for experimentally probing non-abelian statistics in the quantum Hall effect are based on geometries where current-carrying quasiparticles flow along edges that encircle bulk quasiparticles, which are localized. Here we consider one such scheme, the Fabry-Perot interferometer, and analyze how its interference patterns are affected by a coupling that allows tunneling of neutral Majorana fermions between the bulk and edge. While at weak coupling this tunneling degrades the interference signal, we find that at strong coupling, the bulk quasiparticle becomes essentially absorbed by the edge and the intereference signal is fully restored.

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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