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Motivated by the recent advances in studying Majorana states in nanowires under conditions of superconducting proximity effect, we address the correspondence between the common topological transition in infinite system and the topological…

介观与纳米尺度物理 · 物理学 2015-06-12 Dmitry I. Pikulin , Yuli V. Nazarov

The topological properties of a multiband topological superconductor in two dimensions are studied, when the latter is obtained by introducing electron pairing in an otherwise topological insulator. The type of pairing, doping and Fermi…

超导电性 · 物理学 2015-05-20 Ana C. Silva , Miguel A. N. Araújo , Pedro D. Sacramento

The analysis of waiting times of electron transfers has recently become experimentally accessible owing to advances in noninvasive probes working in the short-time regime. We study electron waiting times in a topological Andreev…

超导电性 · 物理学 2024-03-21 Paramita Dutta , Jorge Cayao , Annica M. Black-Schaffer , Pablo Burset

One of the problems concerning topological phases in solid-state systems which still remains urgent is an issue of many-body effects. In this study we address it within perturbative theory framework by considering topological phase…

介观与纳米尺度物理 · 物理学 2023-10-24 M. S. Shustin , S. V. Aksenov , I. S. Burmistrov

In superconductor-semiconductor hybrids, applying a magnetic field closes a trivial bulk gap and causes a topological phase transition (TPT), resulting in the emergence of Majorana zero modes at both ends of the wires. However, trivial…

超导电性 · 物理学 2025-11-06 Takeshi Mizushima , Yukio Tanaka , Jorge Cayao

We consider topological superconductors and topological insulator/superconductor structures in the presence of multiple static vortices that host Majorana modes and focus on the Majorana tunneling processes between vortices. It is shown…

超导电性 · 物理学 2010-09-03 Meng Cheng , Roman M. Lutchyn , Victor Galitski , S. Das Sarma

We show theoretically that in the generic finite chemical potential situation, the clean superconducting spin-orbit-coupled nanowire has two distinct nontopological regimes as a function of Zeeman splitting (below the topological quantum…

介观与纳米尺度物理 · 物理学 2018-10-31 Yingyi Huang , Haining Pan , Chun-Xiao Liu , Jay D. Sau , Tudor D. Stanescu , S. Das Sarma

Recent experiments have produced mounting evidence of Majorana zero modes in nanowire-superconductor hybrids. Signatures of an expected topological phase transition accompanying the onset of these modes nevertheless remain elusive. We…

介观与纳米尺度物理 · 物理学 2016-06-13 Ryan V. Mishmash , David Aasen , Andrew P. Higginbotham , Jason Alicea

We consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana zero-modes at the…

We propose a theoretical model to investigate the interplay between altermagnetism and $p$-wave superconductivity, with a particular focus on topological phase transitions in a two-dimensional (2D) $p$-wave superconductor, considering both…

超导电性 · 物理学 2025-08-06 Pritam Chatterjee , Vladimir Juričić

We show that the interplay of cyclotron motion and Andreev reflection experienced by massless-Dirac-like charge carriers in topological-insulator surface states generates a Majorana-particle excitation. Based on an envelope-function…

介观与纳米尺度物理 · 物理学 2013-05-14 Rakesh P. Tiwari , U. Zülicke , C. Bruder

We propose and analyze theoretically an experimental setup for detecting the elusive Majorana particle in semiconductor-superconductor heterostructures. The experimental system consists of one-dimensional semiconductor wire with strong…

超导电性 · 物理学 2010-08-16 Roman M. Lutchyn , Jay D. Sau , S. Das Sarma

We investigate gradual development of the quasiparticle states in two quantum dots attached to opposite sides of the topological superconducting nanowire, hosting the boundary modes. Specifically, we explore the non-equilibrium…

介观与纳米尺度物理 · 物理学 2025-09-16 R. Taranko , K. Wrześniewski , I. Weymann , T. Domański

We study the proximity effect in a topological nanowire tunnel coupled to an s-wave superconducting substrate. We use a general Green's function approach that allows us to study the evolution of the Andreev bound states in the wire into…

介观与纳米尺度物理 · 物理学 2013-10-07 D. Chevallier , P. Simon , C. Bena

Motivated by the recent experiment of Wang et al. [Nature Physics 6, 389 (2010)], who observed a highly unusual transport behavior of ferromagnetic Cobalt nanowires proximity-coupled to superconducting electrodes, we study proximity effect…

超导电性 · 物理学 2015-06-03 So Takei , Victor Galitski

The recent experimental observations of decaying energy oscillations in semiconductor-superconductor Majorana nanowires is in contrast with the typical expectations based on the presence of Majorana zero modes localized at the ends of the…

介观与纳米尺度物理 · 物理学 2024-02-19 Gargee Sharma , Chuanchang Zeng , Tudor D. Stanescu , Sumanta Tewari

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

Electron correlation in a quantum many-body state appears as peculiar scattering behaviour at its boundary, symbolic of which is Andreev reflection at a metal-superconductor interface. Despite being fundamental in nature, dictated by the…

介观与纳米尺度物理 · 物理学 2021-05-20 Masayuki Hashisaka , Thibaut Jonckheere , Takafumi Akiho , Satoshi Sasaki , Jerome Rech , Thierry Martin , Koji Muraki

We study charge transport through a topological superconductor with a pair of Majorana end states, coupled to leads via quantum dots with resonant levels. The non-locality of the Majorana bound states opens the possibility of crossed…

介观与纳米尺度物理 · 物理学 2013-09-13 Björn Zocher , Bernd Rosenow

I. Introduction (What is new in RMT, Superconducting quasiparticles, Experimental platforms) II. Topological superconductivity (Kitaev chain, Majorana operators, Majorana zero-modes, Phase transition beyond mean-field) III. Fundamental…

介观与纳米尺度物理 · 物理学 2015-09-07 C. W. J. Beenakker
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