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We theoretically study scanning gate microscopy of a superconductor-proximitized semiconducting wire focusing on the potential for detection of Majorana bound states. We exploit the possibility to create a local potential perturbation by…

介观与纳米尺度物理 · 物理学 2025-11-18 S. Maji , M. P. Nowak

Theoretical research suggests a emergence of the Majorana bound states at the ends of the nanowires. Experimental verifications of said concept has already been executed, e.g., in superconductor/semiconductor nanowire devices where…

介观与纳米尺度物理 · 物理学 2020-12-01 Aksel Kobiałka , Andrzej Ptok

Majorana bound states are quasiparticle excitations localized at the boundaries of a topologically nontrivial superconductor. They are zero-energy, charge-neutral, particle-hole symmetric, and spatially-separated end modes which are…

介观与纳米尺度物理 · 物理学 2022-12-21 Pasquale Marra

Zero--energy Majorana quasiparticles can be induced at the edge of a low dimensional systems. Non--Abelian statistics of this state makes it a good candidate for the realization of quantum computing. From the practical point of view, it is…

介观与纳米尺度物理 · 物理学 2019-02-04 Aksel Kobiałka , Andrzej Ptok

Topological quantum computation using non-Abelian Majorana zero modes localized in proximitized semiconductor nanowires requires careful electrostatic control of wire-junctions so as to manipulate and braid the zero modes enabling anyonic…

介观与纳米尺度物理 · 物理学 2018-01-16 Tudor D. Stanescu , Sankar Das Sarma

Topological superconductors can host Majorana quasiparticles which supersede the fermion/boson dichotomy and offer a pathway to fault tolerant quantum computation. In one-dimensional systems zero-energy Majorana states are bound to the ends…

In recent years, experimental advances have made it possible to achieve an unprecedented degree of control over the properties of subgap bound states in hybrid nanoscale superconducting structures. This research has been driven by the…

介观与纳米尺度物理 · 物理学 2024-10-03 Rubén Seoane Souto , Ramón Aguado

Conductance at zero source-drain voltage bias in InSb nanowire/NbTiN superconductor devices exhibits peaks that are close to a quantized value of $2e^2/h$. The nearly quantized resonances evolve in the tunnel barrier strength, magnetic…

介观与纳米尺度物理 · 物理学 2021-04-28 P. Yu , J. Chen , M. Gomanko , G. Badawy , E. P. A. M. Bakkers , K. Zuo , V. Mourik , S. M. Frolov

Majorana modes emerge in non-trivial topological phases at the edges of some specific materials, like proximitized semiconducting nanowires under a external magnetic field. Ideally, they are non-local states that are charge neutral…

介观与纳米尺度物理 · 物理学 2018-09-13 Samuel D. Escribano , Alfredo Levy Yeyati , Elsa Prada

Majorana zero modes are quasiparticle excitations in condensed matter systems that have been proposed as building blocks of fault-tolerant quantum computers [1]. They are expected to exhibit non-Abelian particle statistics, in contrast to…

介观与纳米尺度物理 · 物理学 2016-03-18 S. M. Albrecht , A. P. Higginbotham , M. Madsen , F. Kuemmeth , T. S. Jespersen , J. Nygård , P. Krogstrup , C. M. Marcus

The presence of a Majorana bound state in condensed matter systems is often associated to a zero bias peak in conductance measurements. Here, we analyze a system were this paradigm is violated. A Majorana bound state is always present at…

介观与纳米尺度物理 · 物理学 2018-10-17 Christoph Fleckenstein , Felix Keidel , Bjoern Trauzettel , Niccolo Traverso Ziani

Majorana zero modes are fractional quantum excitations appearing in pairs, each pair being a building block for quantum computation . Some possible signatures of these excitations have been reported as zero bias peaks at endpoints of…

Majorana bound states have been recently observed at the boundaries of one-dimensional topological superconductors. Yet, controlling the localization of the Majorana states, which is essential to the realization of any topological quantum…

超导电性 · 物理学 2017-11-22 Pasquale Marra , Mario Cuoco

We theoretically study a spin-orbit-coupled nanowire proximitized by a superconductor in the presence of an externally applied Zeeman field ("Majorana nanowire") with zero-energy Majorana bound states localized at the two ends of the wire…

介观与纳米尺度物理 · 物理学 2018-12-26 Yingyi Huang , Jay D. Sau , Tudor D. Stanescu , S. Das Sarma

Recent experimental efforts towards the detection of Majorana bound states have focused on creating the conditions for topological superconductivity. Here we demonstrate an alternative route, which achieves fully localised zero-energy…

介观与纳米尺度物理 · 物理学 2016-03-07 Pablo San-Jose , Jorge Cayao , Elsa Prada , Ramón Aguado

We perform tunneling measurements on indium antimonide nanowire/superconductor hybrid devices fabricated for the studies of Majorana bound states. At finite magnetic field, resonances that strongly resemble Majorana bound states, including…

介观与纳米尺度物理 · 物理学 2024-01-25 Jun Chen , Benjamin Woods , Peng Yu , Moira Hocevar , Diana Car , Sebastien Plissard , Erik Bakkers , Tudor Stanescu , Sergey Frolov

We propose a nanomechanical detection scheme for Majorana bound states, which have been predicted to exist at the edges of a one-dimensional topological superconductor, implemented, for instance, using a semiconducting wire placed on top of…

介观与纳米尺度物理 · 物理学 2011-12-22 Stefan Walter , Thomas L. Schmidt , Kjetil Børkje , Björn Trauzettel

The signatures of Majorana zero-energy mode leaking into a spin-charge entangled double quantum dot are investigated theoretically in the strong electron correlation regime. The considered setup consists of two capacitively coupled quantum…

介观与纳米尺度物理 · 物理学 2021-10-05 Piotr Majek , Ireneusz Weymann

Majorana bound states emerge in topological superconductors as zero-energy edge states exhibiting spatial nonlocality. Despite the enormous advances, the detection of Majorana bound states is still challenging mainly because topologically…

介观与纳米尺度物理 · 物理学 2024-12-13 Vimalesh Kumar Vimal , Jorge Cayao

We show that nonzero drag current in a double quantum-dot system, consisting of a biased drive dot and an unbiased passive dot coupled capacitively, can be generated by a Majorana bound state located at one of the leads connected to the…

介观与纳米尺度物理 · 物理学 2024-02-20 Xiao Xiao , Jian-Xin Zhu
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