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We employ a time-dependent real-space local density-of-states method to study the movement and fusion of Majorana zero modes in the 1D interacting Kitaev model, based on the time evolution of many-body states. We analyze the dynamics and…

超导电性 · 物理学 2024-10-04 Bradraj Pandey , Narayan Mohanta , Elbio Dagotto

We show that a pair of overlapping Majorana bound states (MBSs) forming a partially-separated Andreev bound state (ps-ABS) represents a generic low-energy feature in spin-orbit coupled semiconductor-superconductor (SM-SC) hybrid nanowires…

介观与纳米尺度物理 · 物理学 2018-04-13 Christopher Moore , Tudor D. Stanescu , Sumanta Tewari

Reading out Majorana bound states (MBSs) is essential both to verify their non-Abelian property and to realize topological quantum computation. Here, we construct a protocol to measure the parity of two MBSs in a Majorana island coupled to…

介观与纳米尺度物理 · 物理学 2021-09-14 Zhen-Tao Zhang , Dong E. Liu

Majorana bound states (MBSs) are quasiparticles which are their own antiparticles. They are predicted to emerge as zero-energy modes localized at the boundary of a topological superconductor. No intrinsic topological superconductor is known…

介观与纳米尺度物理 · 物理学 2024-09-27 William F. Schiela , Peng Yu , Javad Shabani

In this work, we investigate the conductance and current correlations properties of a quantum topological inteferometer consisting of a QD coupled to two Majorana Bound States (MBSs) confined at both ends of a 1D topological superconductor…

介观与纳米尺度物理 · 物理学 2021-09-01 Ana M. Calle , Pedro A. Orellana , Jorge A. Otalora

We study multiband semiconducting nanowires proximity-coupled with an s-wave superconductor. We show that when odd number of subbands are occupied the system realizes non-trivial topological state supporting Majorana modes localized at the…

超导电性 · 物理学 2011-03-31 Roman M. Lutchyn , Tudor Stanescu , S. Das Sarma

We investigate transport properties through a crossbar-shaped structure formed by a quantum dot (QD) coupled to two normal leads and embedded between two one-dimensional topological superconductors (TSCs). Each TSC hosts Majorana bound…

介观与纳米尺度物理 · 物理学 2019-05-23 J. P. Ramos-Andrade , D. Zambrano , P. A. Orellana

Two semiconducting quantum dots (QDs) coupled through a superconductor constitute a minimal realisation of a Kitaev chain with Majorana zero modes (MZMs). Such MZMs can be detected by e.g., tunneling conductance between each QD and normal…

介观与纳米尺度物理 · 物理学 2025-07-30 Miguel Alvarado , Alfredo Levy Yeyati , Ramón Aguado , Rubén Seoane Souto

Protecting qubits from noise is essential for building reliable quantum computers. Topological qubits offer a route to this goal by encoding quantum information non-locally, using pairs of Majorana zero modes. These modes form a shared…

Majorana Bound States (MBS) have emerged as promising candidates for robust quantum computing due to their non-Abelian statistics and topological protection. In this study, we focus on the dynamical transport of MBS in the…

介观与纳米尺度物理 · 物理学 2025-07-14 Dibyajyoti Sahu , Suhas Gangadharaiah

Recent experimental advances in the field of cold atoms led to the development of novel techniques for producing synthetic dimensions and synthetic magnetic fields, thus greatly expanding the utility of cold atomic systems for exploring…

量子气体 · 物理学 2018-03-28 Or Golan , Eran Sela , Kirill Shtengel

Motivated by an important recent experiment [Deng et al., Science 354, 1557 (2016)], we theoretically consider the interplay between Andreev bound states(ABSs) and Majorana bound states(MBSs) in quantum dot-nanowire semiconductor systems…

介观与纳米尺度物理 · 物理学 2017-09-07 Chun-Xiao Liu , Jay D. Sau , Tudor D. Stanescu , S. Das Sarma

We show how a recently proposed solid state Majorana platform comprising a planar Josephson junction proximitized to a 2D electron gas (2DEG) with Rashba spin-orbit coupling and Zeeman field can be viewed as an effectively one dimensional…

介观与纳米尺度物理 · 物理学 2018-06-20 Dillon T. Liu , Javad Shabani , Aditi Mitra

A versatile control of magnetic systems, widely used to store information, can also enable manipulating Majorana bounds states (MBS) and implementing fault-tolerant quantum information processing. The proposed platform relies on the…

介观与纳米尺度物理 · 物理学 2017-06-23 Alex Matos-Abiague , Javad Shabani , Andrew D. Kent , Geoffrey L. Fatin , Benedikt Scharf , Igor Žutić

We study the preparation of coherent quantum states in a two-photon micromaser for applications in quantum metrology. While this setting can be in principle realized in a host of physical systems, we consider atoms interacting with the…

量子物理 · 物理学 2020-05-01 Andreas Kouzelis , Katarzyna Macieszczak , Jiří Minář , Igor Lesanovsky

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

Majorana-zero-modes (MZMs) were predicted to exist as edge states of a physical system called the Kitaev chain. MZMs should host particles that are their own antiparticles and could be used as a basis for a qubit which is robust-to-noise.…

量子物理 · 物理学 2022-11-22 Marko J. Rančić

Exchangeless braiding of Majorana modes is studied in minimal networks of weakly hybridized Kitaev chains of finite length using a rigorous many-body framework. In particular, for two coupled chains it is shown that exchangeless braiding is…

介观与纳米尺度物理 · 物理学 2025-08-12 Robin Quade , Michael Potthoff

We investigate the topological properties of a dimerized Kitaev chain with long-range interactions, including the intercell hopping and superconducting pairing terms. It is found that even only when the intercell hopping term appears, the…

介观与纳米尺度物理 · 物理学 2020-09-18 Xue-Si Li , Jia-Rui Li , Shu-Feng Zhang , Lian-Lian Zhang , Wei-Jiang Gong

Recent tunneling experiments on InSb hybrid superconductor-semiconductor devices have provided hope for a stabilization of Majorana edge modes in a spin-orbit quantum wire subject to a magnetic field and superconducting proximity effect.…

介观与纳米尺度物理 · 物理学 2015-06-16 Ronny Thomale , Stephan Rachel , Peter Schmitteckert