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相关论文: Probing the existence and dynamics of Majorana fer…

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Motivated by recent experiments searching for Majorana fermions (MFs) in hybrid semiconducting-superconducting nanostructures, we consider a realistic tight-binding model and analyze its transport behavior numerically. In particular, we…

介观与纳米尺度物理 · 物理学 2013-02-04 Diego Rainis , Luka Trifunovic , Jelena Klinovaja , Daniel Loss

We theoretically study quantum transport through a quantum dot coupled to Majorana bound states confined at the ends of a topological superconducting nanowire. The topological superconductor forms a loop and is threaded by a tunable…

介观与纳米尺度物理 · 物理学 2022-04-25 Levente Máthé , Doru Sticlet , Liviu P. Zârbo

We explore the tunneling transport properties of a quantum dot embedded in an optical microcavity and coupled to a semiconductor-superconductor one-dimensional nanowire (Majorana nanowire) hosting Majorana zero modes (MZMs) at their edges.…

介观与纳米尺度物理 · 物理学 2022-02-09 L. S. Ricco , V. K. Kozin , A. C. Seridonio , I. A. Shelykh

Robust zero bias transport anomalies in semiconducting nanowires with proximity-induced superconductivity have been convincingly demonstrated in various experiments. While these are compatible with the existence of Majorana zero modes at…

介观与纳米尺度物理 · 物理学 2017-08-15 Elsa Prada , Ramón Aguado , Pablo San-Jose

It was predicted by Tewari [Phys. Rev. Lett. {\bf 100}, 027001 (2008)] that a teleportationlike electron transfer phenomenon is one of the novel consequences of the existence of Majorana fermion, because of the inherently nonlocal nature.…

介观与纳米尺度物理 · 物理学 2023-09-26 Peiyue Wang , Yunshan Cao , Ming Gong , Shu-Shen Li , Xin-Qi Li

We investigate electron transport inside a ring system composed of a quantum dot (QD) coupled to two Majorana bound states confined at the ends of a one-dimensional topological superconductor nanowire. By tuning the magnetic flux threading…

介观与纳米尺度物理 · 物理学 2020-12-16 Qi-Bo Zeng , Shu Chen , L. You , Rong Lv

Obeying non-Abelian statistics, Majorana fermions holds a promise to implement fault-tolerant quantum computing. It was found that Majorana fermions can be simulated by the zero-energy excitation in a nanowire with strong spin-orbit…

量子物理 · 物理学 2024-05-24 Ming-Jian Gao , Yu-Peng Ma , Jun-Hong An

Majorana zero modes are localized quasiparticles that obey non-Abelian exchange statistics. Braiding Majorana zero modes forms the basis of topologically protected quantum operations which could in principle significantly reduce qubit…

介观与纳米尺度物理 · 物理学 2019-11-14 Hao Zhang , Dong E. Liu , Michael Wimmer , Leo P. Kouwenhoven

We consider a quantum dot coupled to a topological superconductor and two normal leads and study transport properties of the system. Using Keldysh path-integral approach, we study current fluctuations (shot noise) within the low-energy…

介观与纳米尺度物理 · 物理学 2015-04-08 Dong E. Liu , Meng Cheng , Roman M. Lutchyn

We theoretically analyze phonon-assisted tunneling transport in a quantum dot side connected to a Majorana bound state in a topological superconducting nanowire. We investigate the behavior of the current through the dot, for a range of…

介观与纳米尺度物理 · 物理学 2024-08-07 Levente Máthé , Zoltán Kovács-Krausz , Ioan Botiz , Ioan Grosu , Khadija El Anouz , Abderrahim El Allati , Liviu P. Zârbo

We investigate the charge transport in a semiconductor nanowire that is subject to a perpendicular magnetic field and in partial contact with an \textit{s}-wave superconductor. We find that Majorana fermions, existing at the interface…

超导电性 · 物理学 2012-01-27 Chunlei Qu , Yongping Zhang , Li Mao , Chuanwei Zhang

Motivated by a recent experiment [Nadj-Perge et al., Science 346, 602 (2014)] providing evidence for Majorana zero modes in iron chains on the superconducting Pb surface, in the present work, we theoretically propose an all-optical scheme…

介观与纳米尺度物理 · 物理学 2015-11-29 Hua-Jun Chen , Chang-Zhao Chen , Xian-Wen Fang , Yang Li , Guang-Hong Miao , Shao-Fei Tu , Ka-Di Zhu

We perform simulations for transport and nontrivial fusion of Majorana zero modes in topological superconducting quantum wires. We uncover interesting behaviors of nonadiabatic transition associated with the transport through…

介观与纳米尺度物理 · 物理学 2024-12-03 Qiongyao Wang , Jing Bai , Luting Xu , Wei Feng , Xin-Qi Li

We present a theoretical analysis of low-energy quantum transport in coupled Majorana box devices. A single Majorana box represents a Coulomb-blockaded mesoscopic superconductor proximitizing two or more long topological nanowires. The box…

介观与纳米尺度物理 · 物理学 2018-05-18 Matthias Gau , Stephan Plugge , Reinhold Egger

After a recent series of rapid and exciting developments, the long search for the Majorana fermion - the elusive quantum entity at the border between particles and antiparticles - has produced the first positive experimental results, but is…

超导电性 · 物理学 2013-05-14 Tudor D. Stanescu , Sumanta Tewari

Josephson junctions operated in the dynamical Coulomb blockade regime recently gained an significant amount of attention as central building block in concepts to demonstrate the non-Abelian character of Majorana fermions. Its physical…

介观与纳米尺度物理 · 物理学 2017-12-21 Berthold Jäck , Jacob Senkpiel , Markus Etzkorn , Joachim Ankerhold , Christian R. Ast , Klaus Kern

As the condensed matter analog of Majorana fermion, the Majorana zero-mode is well known as a building block of fault-tolerant topological quantum computing. This review focuses on the recent progress of Majorana experiments, especially…

介观与纳米尺度物理 · 物理学 2024-03-21 Ji-Bang Fu , Bin Li , Xin-Fang Zhang , Guang-Zheng Yu , Guang-Yao Huang , Ming-Tang Deng

We study quantum entanglement in a system comprising two quantum dots interconnected through the short topological superconducting nanowire, which hosts overlapping boundary Majorana modes. Inspecting the fermionic negativity, we analyze…

量子物理 · 物理学 2026-03-05 C. Jasiukiewicz , A. Sinner , I. Weymann , T. Domański , L. Chotorlishvili

We propose a setup to measure the lifetime of the parity of a pair of Majorana bound states. The proposed experiment has one edge Majorana state tunnel coupled to a quantum dot, which in turn is coupled to a metallic electrode. When the…

介观与纳米尺度物理 · 物理学 2013-01-10 Martin Leijnse , Karsten Flensberg

Semiconducting nanowires in proximity to superconductors are promising experimental systems for Majorana fermions, which may ultimately be used as building blocks for topological quantum computers. A serious challenge in the experimental…

超导电性 · 物理学 2012-07-19 Jay D. Sau , S. Das Sarma
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