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Braiding Majorana zero-modes around each other is a promising route towards topological quantum computing. Yet, two competing maxims emerge when implementing Majorana braiding in real systems: On the one hand, perfect braiding should be…

介观与纳米尺度物理 · 物理学 2022-01-31 Niels Breckwoldt , Thore Posske , Michael Thorwart

Topological excitations, such as Majorana zero modes, are a promising route for encoding quantum information. Topologically protected gates of Majorana qubits, based on their braiding, will require some form of network. Here, we propose to…

介观与纳米尺度物理 · 物理学 2021-04-01 L. C. Contamin , M. R. Delbecq , B. Dou çot , A. Cottet , T. Kontos

Topology-related ideas might lead to noise-resilient quantum computing. For example, it is expected that the slow spatial exchange (`braiding') of Majorana zero modes in superconductors yields quantum gates that are robust against disorder.…

介观与纳米尺度物理 · 物理学 2024-03-13 Péter Boross , András Pályi

Majorana zero-modes in a superconductor are midgap states localized in the core of a vortex or bound to the end of a nanowire. They are anyons with non-Abelian braiding statistics, but when they are immobile one cannot demonstrate this by…

超导电性 · 物理学 2019-04-17 C. W. J. Beenakker , P. Baireuther , Y. Herasymenko , I. Adagideli , Lin Wang , A. R. Akhmerov

Chiral Majorana edge modes are theoretically proposed to perform braiding operations for the potential quantum computation. Here, we suggest a scheme to regulate trajectories of the chiral Majorana fermion based on a quantum anomalous Hall…

介观与纳米尺度物理 · 物理学 2019-12-10 Qing Yan , Yan-Feng Zhou , Qing-Feng Sun

We show that elongated magnetic skyrmions can host Majorana bound states in a proximity-coupled two-dimensional electron gas sandwiched between a chiral magnet and an $s$-wave superconductor. Our proposal requires stable skyrmions with unit…

介观与纳米尺度物理 · 物理学 2018-03-21 Utkan Güngördü , Shane Sandhoefner , Alexey A. Kovalev

A vortex in a model spinless px+ipy superconductor induces two Majorana fermions (MFs), one in the core and the other at the sample edge. In the present work, we show that edge MF can be generated, fused, transported, and braided easily by…

超导电性 · 物理学 2011-12-30 Qi-Feng Liang , Zhi Wang , Xiao Hu

We propose an experiment to directly probe the non-Abelian statistics of Majorana fermions by braiding them in an s-wave superfluid of ultracold atoms. We show different orders of braiding operations give orthogonal output states that can…

量子气体 · 物理学 2011-03-23 Shi-Liang Zhu , L. B. Shao , Z. D. Wang , Lu-Ming Duan

Given recent progress in the realization of Majorana zero modes in semiconducting nanowires with proximity-induced superconductivity, a crucial next step is to attempt an experimental demonstration of the predicted braiding statistics…

介观与纳米尺度物理 · 物理学 2017-05-08 David J. Clarke , Jay D. Sau , Sankar Das Sarma

We propose an experimental scheme to simulate the transverse field Ising model with cold atoms trapped in one-dimensional optical lattice. Majorana fermions are created at the ends of the optical lattice segment in topological phase. By…

量子气体 · 物理学 2012-04-19 Feng Mei , Chuan-Jia Shan , Xun-Li Feng , Shi-Liang Zhu , Zhi-Ming Zhang , L. C. Kwek , D. Wilkowski , C. H. Oh

Demonstration of non-Abelian statistics of Majorana bound states (MBS) is crucial for the realization of fault-tolerant topological quantum computation. Two-dimensional platforms such as planar Josephson junctions require an in-plane…

超导电性 · 物理学 2025-07-08 Pankaj Sharma , Narayan Mohanta

The study of topological states has become an important topic in both solid-state systems and artificial structures such as photonic crystals and phononic crystals. Among them, Majorana zero modes, which exhibit nontrivial braiding process,…

介观与纳米尺度物理 · 物理学 2025-01-03 Qiyun Ma , Hailong He , Meng Xiao , Zhengyou Liu

Qubits built out of Majorana zero modes (MZMs) have long been theorized as a potential pathway toward fault-tolerant topological quantum computation. Almost unavoidable in these processes is Majorana wavefunction overlap, known as…

介观与纳米尺度物理 · 物理学 2025-03-10 Themba Hodge , Eric Mascot , Dan Crawford , Stephan Rachel

We study dynamics of a single qubit encoded in two pairs of Majorana modes, whereby each pair is hosted on a trijunction described by the Kitaev model extended by many-body interactions. We demonstrated that the challenging phase-gate may…

超导电性 · 物理学 2020-01-09 Andrzej Więckowski , Marcin Mierzejewski , Michał Kupczyński

We propose a platform for braiding Majorana non-Abelian anyons based on a heterostructure between a $d$-wave high-$T_c$ superconductor and a quantum spin-Hall insulator. It has been recently shown that such a setup for a quantum spin-Hall…

介观与纳米尺度物理 · 物理学 2021-07-30 Matthew F. Lapa , Meng Cheng , Yuxuan Wang

I examine, in general, how tunable interactions may be used to perform anyonic teleportation and generate braiding transformations for non-Abelian anyons. I explain how these methods are encompassed by the "measurement-only" approach to…

强关联电子 · 物理学 2013-01-11 Parsa Bonderson

The remarkable properties and potential applications of Majorana fermions have led to considerable efforts in recent years to realize topological matters that host these excitations. For a number-conserving system, there have been a few…

量子气体 · 物理学 2019-01-10 X. Y. Yin , Tin-Lun Ho , Xiaoling Cui

Surface codes have emerged as promising candidates for quantum information processing. Building on the previous idea to realize the physical qubits of such systems in terms of Majorana bound states supported by topological semiconductor…

介观与纳米尺度物理 · 物理学 2016-02-12 L. A. Landau , S. Plugge , E. Sela , A. Altland , S. M. Albrecht , R. Egger

We study the possibility to realize Majorana zero mode that's robust and may be easily manipulated for braiding in quantum computing in the ground state of the Kitaev model in this work. To achieve this we first apply a uniform [111]…

强关联电子 · 物理学 2021-12-13 Lu Yang , Jia-Xing Zhang , Shuang Liang , Wei Chen , Qiang-Hua Wang

Majorana fermions subject to the non-Abelian braid group are believed to be the basic ingredients of future topological quantum computations. In this work, we propose to simulate Majorana fermions of the Kitaev model in electric circuits…

介观与纳米尺度物理 · 物理学 2020-08-13 Motohiko Ezawa