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Recent tunneling spectroscopy experiments in semiconducting nanowires with proximity-induced superconductivity have reported robust zero-bias conductance peaks. Such a feature can be compatible with the existence of topological Majorana…

介观与纳米尺度物理 · 物理学 2018-08-29 Esben Bork Hansen , Jeroen Danon , Karsten Flensberg

Demonstration of Majorana non-Abelian properties is a major challenge in the field of topological superconductivity. In this work, we propose a minimal device and protocol for testing non-Abelian properties using charge-transfer operations…

介观与纳米尺度物理 · 物理学 2022-02-02 Svend Krøjer , Rubén Seoane Souto , Karsten Flensberg

Topological quantum computation, featuring qubits built out of anyonic excitations known as Majorana zero modes (MZMs), have long presented an exciting pathway towards scalable quantum computation. Recently, the advent of altermagnetic…

介观与纳米尺度物理 · 物理学 2025-06-11 Themba Hodge , Eric Mascot , Stephan Rachel

We simulate the non-Abelian exchange of Majorana zero modes (MZMs) on a quantum computer. Rather than utilizing MZMs at the boundaries of quantum Ising chains, which are typically represented as nonlocal operators on a quantum computer,…

量子物理 · 物理学 2025-07-24 Foster Sabatino , Matthew Brooks , Charles Tahan , Silas Hoffman

We study a series of dynamical protocols which involve periodically driving a quantum dot coupled to a putative nanowire hosting Majorana zero modes (MZMs) to i) reduce the hybridization between MZMs, ii) improve the coherence of the…

介观与纳米尺度物理 · 物理学 2022-04-18 Brett Min , Bastien Fajardo , T. Pereg-Barnea , Kartiek Agarwal

One-dimensional topological superconductors are known to host Majorana zero modes at domain walls terminating the topological phase. Their nonabelian nature allows for processing quantum information by braiding operations which are…

介观与纳米尺度物理 · 物理学 2013-11-27 Torsten Karzig , Gil Refael , Felix von Oppen

Chiral Majorana fermion is a massless self-conjugate fermion which can arise as the edge state of certain two-dimensonal topological matters. It has been theoretically predicted and experimentally observed in a hybrid device of quantum…

介观与纳米尺度物理 · 物理学 2018-10-10 Biao Lian , Xiao-Qi Sun , Abolhassan Vaezi , Xiao-Liang Qi , Shou-Cheng Zhang

Braiding of Majorana states demonstrates their non-Abelian exchange statistics. One implementation of braiding requires control of the pairwise couplings between all Majorana states in a trijunction device. To have adiabaticity, a…

介观与纳米尺度物理 · 物理学 2024-02-14 Juan Daniel Torres Luna , Sathish R. Kuppuswamy , Anton R. Akhmerov

We investigate quantum transport in a hybrid system composed of two quantum dots (QDs) coupled through a pair of spatially separated Majorana zero modes (MZMs) with negligible coupling energy. We focus on nonlocal correlations mediated by…

介观与纳米尺度物理 · 物理学 2026-03-05 Sirui Yu , Hong Mao , Jinshuang Jin , Chui-Ping Yang

Majorana Zero Modes (MZMs) are prime candidates for robust topological quantum bits, holding a great promise for quantum computing. Semiconducting nanowires with strong spin orbit coupling offers a promising platform to harness…

We study the dynamics of Majorana zero modes that are shuttled via local tuning of the electrochemical potential in a superconducting wire. By performing time-dependent simulations of microscopic lattice models, we show that diabatic…

介观与纳米尺度物理 · 物理学 2018-07-18 Bela Bauer , Torsten Karzig , Ryan V. Mishmash , Andrey E. Antipov , Jason Alicea

Experimental evidence for Majorana bound states (MBSs) is so far mainly based on the robustness of a zero-bias conductance peak. However, similar features can also arise due to Andreev bound states (ABSs) localized at the end of an island.…

介观与纳米尺度物理 · 物理学 2018-04-18 Michael Hell , Karsten Flensberg , Martin Leijnse

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

We propose an experimental scheme to observe non-abelian statistics with cold atoms in a two dimensional optical lattice. We show that the Majorana-Schockley modes associated with line defects obey non-abelian statistics and can be created,…

量子物理 · 物理学 2015-04-01 Dong-Ling Deng , Sheng-Tao Wang , Kai Sun , Lu-Ming Duan

Known Majorana fermions models are considered as promising ones for the purposes of quantum computing robust to decoherence. One of the most expecting but unachieved goals is an effective control for braiding of Majoranas. Another one is to…

介观与纳米尺度物理 · 物理学 2017-12-15 Halina V. Grushevskaya , George Krylov

The non-local coherent nature of the Majorana devices is one of the key factors for realizing decoherence-free topological qubits. Direct observation of this coherent nature could provide a first-step benchmarking scheme to validate…

介观与纳米尺度物理 · 物理学 2020-02-19 Donghao Liu , Zhan Cao , Hao Zhang , Dong E. Liu

While the adiabatic exchange of Majorana zero modes (MZMs) enables a non-universal set of geometrically protected gates, realising an experimental implementation of MZM braiding remains challenging. In an alternative proposal, charge-parity…

量子物理 · 物理学 2025-07-29 Matthew Brooks , Foster Sabatino , Charles Tahan , Silas Hoffman

We numerically compute the low-energy spectrum of a gate-controlled superconducting topological nanowire segmented into two islands, each Josephson-coupled to a bulk superconductor. This device may host two pairs of Majorana bound states…

介观与纳米尺度物理 · 物理学 2017-10-18 Michael Hell , Jeroen Danon , Karsten Flensberg , Martin Leijnse

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

We study charge transport in a single-electron transistor implemented as an interferometer such that the Coulomb blockaded middle island contains a circular chiral Majorana or Dirac edge mode. We concentrate on the regime of small…

介观与纳米尺度物理 · 物理学 2023-03-14 Dmitriy S. Shapiro , Alexander D. Mirlin , Alexander Shnirman