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相关论文: Statistical Majorana Bound State Spectroscopy

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Quantized conductance plateaus, a celebrated hallmark of Majorana bound states (MBSs) predicted a decade ago, have recently been observed with small deviations in iron-based superconductors and hybrid nanowires. Here, we demonstrate that…

介观与纳米尺度物理 · 物理学 2023-09-18 Zhan Cao , Gu Zhang , Hao Zhang , Ying-Xin Liang , Wan-Xiu He , Ke He , Dong E. Liu

Avenues of Majorana bound states (MBSs) have become one of the primary directions towards a possible realization of topological quantum computation. For a Y-junction of Kitaev quantum wires, we numerically investigate the braiding of MBSs…

介观与纳米尺度物理 · 物理学 2017-09-27 Michael Sekania , Stephan Plugge , Martin Greiter , Ronny Thomale , Peter Schmitteckert

The search for Majorana bound state (MBS) has recently emerged as one of the most active research areas in condensed matter physics, fueled by the prospect of using its non-Abelian statistics for robust quantum computation. A highly…

We propose a scheme to detect the Majorana bound states (MBSs) by a thermodynamically stable D.C. Josephson current with $4\pi$-periodicity in the superconducting phase difference, which is distinct from the previous A.C. $4\pi$-periodicity…

超导电性 · 物理学 2014-09-22 Zhan Cao , Tie-Feng Fang , Hong-Gang Luo

Hybrid superconductor-semiconductor nanowires with Rashba spin-orbit coupling are arguably becoming the leading platform for the search of Majorana bound states (MBSs) in engineered topological superconductors. We perform a systematic…

介观与纳米尺度物理 · 物理学 2018-05-04 Jorge Cayao , Annica M. Black-Schaffer , Elsa Prada , Ramón Aguado

The unambiguous identification of topological Majorana-bound states (MBSs) in superconducting hybrid systems is hindered by trivial low-energy excitations, especially partially separated Andreev bound states (psABSs), which can mimic…

介观与纳米尺度物理 · 物理学 2026-05-13 Shubhanshu Karoliya , Ekta , Gargee Sharma

Transport measurements of hybrid nanowires often rely on the observation of a zero-bias conductance peak as a hallmark of Majorana bound states (MBSs). However, such signatures can also be produced by trivial zero-energy Andreev bound…

介观与纳米尺度物理 · 物理学 2026-03-12 Sarath Prem , Olesia Dmytruk , Mircea Trif

Two-terminal conductance spectroscopy of superconducting devices is a common tool for probing Andreev and Majorana bound states. Here, we study theoretically a three-terminal setup, with two normal leads coupled to a grounded…

介观与纳米尺度物理 · 物理学 2020-01-29 Jeroen Danon , Anna Birk Hellenes , Esben Bork Hansen , Lucas Casparis , Andrew P. Higginbotham , Karsten Flensberg

Confinement at the helical edge of a topological insulator is possible in the presence of proximity-induced magnetic (F) or superconducting (S) order. The interplay of both phenomena leads to the formation of localized Majorana bound states…

超导电性 · 物理学 2018-02-14 Felix Keidel , Pablo Burset , Björn Trauzettel

We calculate the differential conductance at a probe inserted in the weak link of a topological Josephson junction, consisting of a semiconducting nanowire deposited on top of two separated superconductors. Our aim is to understand how the…

介观与纳米尺度物理 · 物理学 2014-01-17 Stefano Valentini , Rosario Fazio , Fabio Taddei

Hybrid nanowires combining semiconductor and superconductor materials appear well suited for the creation, detection, and control of Majorana bound states (MBSs). We demonstrate the emergence of MBSs from coalescing Andreev bound states…

介观与纳米尺度物理 · 物理学 2017-01-06 M. T. Deng , S. Vaitiekenas , E. B. Hansen , J. Danon , M. Leijnse , K. Flensberg , J. Nygård , P. Krogstrup , C. M. Marcus

We study a ring geometry, coupled to two normal metallic leads, which has a Majorana bound state (MBS) embedded in one of its arm and is threaded by Aharonov Bohm ($\mathcal{A}\mathcal{B}$) flux $\phi$. We show that by varying the…

介观与纳米尺度物理 · 物理学 2016-04-27 Krashna Mohan Tripathi , Sourin Das , Sumathi Rao

We propose a novel scanning tunneling microscope (STM) device in which the tunneling tip is formed by a Majorana bound state (MBS). This peculiar bound state exists at the boundary of a one-dimensional topological superconductor. Since the…

超导电性 · 物理学 2017-05-31 Oleksiy Kashuba , Björn Sothmann , Pablo Burset , Björn Trauzettel

In this paper, we investigate the transport properties of spinful electrons tunnel-coupled to a finite-length Majorana nanowire on one end which is further tunnel-coupled to a quantum dot (QD) at the other end. Using a full counting…

介观与纳米尺度物理 · 物理学 2020-08-12 Alexander Schuray , Manuel Rammler , Patrik Recher

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

We propose a new platform to detect signatures of the presence of Majorana bound states (MBSs) in the Fraunhofer pattern of Josephson junctions featuring quantum spin Hall edge states on the normal part and Majorana bound states at the NS…

介观与纳米尺度物理 · 物理学 2024-06-24 F. Dominguez , E. G. Novik , P. Recher

We investigate the Andreev-bound-state (ABS) spectra of three-terminal Josephson junctions which consist of 1D topological superconductors (TSCs) harboring multiple zero-energy edge Majorana bound states (MBSs) protected by chiral symmetry.…

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 investigate electron transport through multiterminal networks hosting Majorana bound states (MBS) in the framework of full counting statistics (FCS). In particular, we apply our general results to T-shaped junctions of two Majorana…

介观与纳米尺度物理 · 物理学 2014-11-26 Luzie Weithofer , Patrik Recher , Thomas L. Schmidt

Poor man's Majorana Bound States (MBS) arise in minimal Kitaev chains when the parameters are fine-tuned to a sweet spot. We consider an interacting two-site Kitaev chain coupled to a single-mode cavity and show that the sweet spot…

介观与纳米尺度物理 · 物理学 2024-07-18 Álvaro Gómez-León , Marco Schirò , Olesia Dmytruk