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Topological phases characterized by non-Abelian charges have garnered increasing attention recently. Although Floquet (periodic-driving) higher-order topological phases have been explored at the single-particle level, the role of…

介观与纳米尺度物理 · 物理学 2025-08-22 Yujie Zhou , Changsen Li , Xiumei Wang , Xingping Zhou

Chiral-antichiral pairs of non-Abelian Hall states, like the Pfaffian, Read-Rezayi and NASS states, can be used to model two-dimensional time-reversal invariant topological insulators. Their stability was shown to be associated to the…

强关联电子 · 物理学 2015-06-22 Andrea Cappelli , Enrico Randellini

We propose the concept of 2D non-Abelian topological insulator which can explain the energy distributions of the edge states and corner states in systems with parity-time symmetry. From the viewpoint of non-Abelian band topology, we…

介观与纳米尺度物理 · 物理学 2022-09-21 Tianshu Jiang , Ruo-Yang Zhang , Qinghua Guo , Biao Yang , C. T. Chan

Non-abelian anyons are prospective candidates for fault-tolerant topological quantum computation due to their long-range entanglement. Curiously these quasiparticles are charge-neutral, hence elusive to most conventional measurement…

介观与纳米尺度物理 · 物理学 2022-10-05 Bivas Dutta , Vladimir Umansky , Mitali Banerjee , Moty Heiblum

Topological phases characterized by non-Abelian charges are beyond the scope of the paradigmatic tenfold way and have gained increasing attention recently. Here we investigate topological insulators with multiple tangled gaps in Floquet…

介观与纳米尺度物理 · 物理学 2023-10-16 Tianyu Li , Haiping Hu

The recent measurement of a half-integer thermal conductance for the $\nu=5/2$ fractional quantum Hall state has confirmed its non-Abelian nature, making the question of the underlying topological order highly intriguing. We analyze the…

介观与纳米尺度物理 · 物理学 2020-10-14 Jinhong Park , Christian Spånslätt , Yuval Gefen , Alexander D. Mirlin

Very recently, increasing attention has been focused on non-Abelian topological charges, e.g. the quaternion group Q8. Different from Abelian topological band insulators, these systems involve multiple tangled bulk bandgaps and support…

介观与纳米尺度物理 · 物理学 2022-01-05 Tianshu Jiang , Qinghua Guo , Ruo-Yang Zhang , Zhao-Qing Zhang , Biao Yang , C. T. Chan

We investigate the proposed experimental setup for measuring the topological charge in a an Ising anyon system by means of Fabry-P\'erot interferometry with a chiral edge state. We show that such an interferometer has the unintended but not…

强关联电子 · 物理学 2011-06-07 David J Clarke , Kirill Shtengel

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…

介观与纳米尺度物理 · 物理学 2009-11-13 B. Rosenow , B. I. Halperin , S. H. Simon , Ady Stern

In this letter we propose an interferometric experiment to detect non-Abelian quasiparticle statistics -- one of the hallmark characteristics of the Moore-Read state expected to describe the observed FQHE plateau at nu=5/2. The implications…

介观与纳米尺度物理 · 物理学 2007-05-23 Parsa Bonderson , Alexei Kitaev , Kirill Shtengel

We consider the tunneling current through a double point-contact Fabry-Perot interferometer such as used in recent experimental studies of the fractional quantum Hall plateau at filling fraction nu=5/2. We compare the predictions of several…

介观与纳米尺度物理 · 物理学 2009-10-05 Waheb Bishara , Parsa Bonderson , Chetan Nayak , Kirill Shtengel , J. K. Slingerland

We examine the relation between different electronic transport phenomena in a Fabry-Perot interferometer in the fractional quantum Hall regime. In particular, we study the way these phenomena reflect the statistics of quantum Hall…

介观与纳米尺度物理 · 物理学 2010-08-24 Ady Stern , Bernd Rosenow , Roni Ilan , Bertrand I. Halperin

We study fermions on a triangular lattice model that exhibits topological flatbands characterized by nonzero Chern numbers. Our scheme stems from the well-known Hofstadter model but the next-nearest-neighbor hopping is introduced, which is…

强关联电子 · 物理学 2015-03-25 Dong Wang , Zhao Liu , Wu-Ming Liu , Jun-Peng Cao , Heng Fan

Observation of non-Abelian statistics for the e/4 quasiparticles in the \nu=5/2 fractional quantum Hall state remains an outstanding experimental problem. The non-Abelian statistics are linked to the presence of additional low energy states…

介观与纳米尺度物理 · 物理学 2013-04-02 Gilad Ben-Shach , Chris R. Laumann , Izhar Neder , Amir Yacoby , Bertrand I. Halperin

Quantum Hall states - the progenitors of the growing family of topological insulators -- are rich source of exotic quantum phases. The nature of these states is reflected in the gapless edge modes, which in turn can be classified as integer…

介观与纳米尺度物理 · 物理学 2022-01-19 Bivas Dutta , Wenmin Yang , Ron Aharon Melcer , Hemanta Kumar Kundu , Moty Heiblum , Vladimir Umansky , Yuval Oreg , Ady Stern , David Mross

In view of the fundamental importance and many promising potential applications, non-Abelian statistics of topologically protected states have attracted much attention recently. However, due to the operational difficulties in solid-state…

量子物理 · 物理学 2020-02-14 Jun-Yi Cao , Jia Liu , L. B. Shao , Zheng-Yuan Xue

To detect non-abelian statistics in the $\nu = 12/5$ quantum Hall state through interferometry, we apply an analysis similar to the ones proposed for the non-abelian $\nu = 5/2$ quantum Hall state. The result is that the amplitude of the…

介观与纳米尺度物理 · 物理学 2012-01-20 Suk Bum Chung , Michael Stone

3D non-abelian anyons have been theoretically proposed to exist in heterostructures composed of type II superconductors and topological insulators. We use realistic material parameters for a device derived from Bi$_2$Se$_3$ to…

超导电性 · 物理学 2011-10-19 Seiji J. Yamamoto , Michael Freedman , Kun Yang

Non-Abelian topological insulators are characterized by matrix-valued, non-commuting topological charges with regard to more than one energy gap. Their descriptions go beyond the conventional topological band theory, in which an additive…

介观与纳米尺度物理 · 物理学 2025-11-11 Jiaxin Pan , Longwen Zhou

Some models of the 5/2 fractional quantum Hall state predict that the quasi-particles, which carry the charge, have non-Abelian statistics: exchange of two quasi-particles changes the wave function more dramatically than just the usual…

介观与纳米尺度物理 · 物理学 2012-06-26 X. Lin , C. Dillard , M. A. Kastner , L. N. Pfeiffer , K. W. West
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