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相关论文: Scattering theory of chiral Majorana fermion inter…

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We propose a conductance measurement to detect the backscattering of chiral Majorana edge states. Because normal and Andreev processes have equal probability for backscattering of a single chiral Majorana edge state, there is qualitative…

介观与纳米尺度物理 · 物理学 2018-11-27 Suk Bum Chung , Xiao-Liang Qi , Joseph Maciejko , Shou-Cheng Zhang

Domain walls between superconducting and magnetic regions placed on top of a topological insulator support transport channels for Majorana fermions. We propose to study noise correlations in a Hanbury Brown-Twiss type interferometer and…

介观与纳米尺度物理 · 物理学 2015-05-30 Grégory Strübi , Wolfgang Belzig , Mahn-Soo Choi , Christoph Bruder

Interferometry is a powerful tool for entanglement production and detection in multiterminal mesoscopic systems. Here we propose a setup to produce, manipulate and detect entanglement in the electron-hole degree of freedom by exploiting…

介观与纳米尺度物理 · 物理学 2018-04-23 Luca Chirolli , José Pablo Baltanás , Diego Frustaglia

As the Fano effect is an interference phenomenon where tunneling paths compete for the electronic transport, it becomes a probe to catch fingerprints of Majorana fermions lying on condensed matter systems. In this work we benefit of this…

介观与纳米尺度物理 · 物理学 2014-11-11 F. A. Dessotti , L. S. Ricco , M. de Souza , F. M. Souza , A. C. Seridonio

We study theoretically a one-dimensional dimerized Kitaev superconductor model which belongs to BDI class with time-reversal, particle-hole, and chiral symmetries. There are two sources of the particle-hole symmetry, i.e., the sublattice…

超导电性 · 物理学 2014-07-11 Ryohei Wakatsuki , Motohiko Ezawa , Yukio Tanaka , Naoto Nagaosa

We propose an experimental setup of an interferometer for the observation of neutral Majorana fermions on topological insulator - superconductor - ferromagnet junctions. We show that the extended lattice defects naturally present in…

介观与纳米尺度物理 · 物理学 2011-08-02 Andrej Mesaros , Stefanos Papanikolaou , Jan Zaanen

We investigate the effect of the Majorana Fermions which are formed at the boundary of a p-wave superconductor. When the Majorana overlapping energy is finite we construct the scattering matrix $\mathbf{S}$ by maping the Majorana zero mode…

超导电性 · 物理学 2015-10-28 D. Schmeltzer

Majorana fermions exist on the boundaries of two-dimensional topological superconductors (TSCs) as charge-neutral quasi-particles. The neutrality makes the detection of such states challenging from both experimental and theoretical points…

超导电性 · 物理学 2021-06-30 James Jun He , Yukio Tanaka , Naoto Nagaosa

We describe experimental signatures of Majorana fermion edge states, which form at the interface between a superconductor and the surface of a topological insulator. If a lead couples to the Majorana fermions through electron tunneling, the…

介观与纳米尺度物理 · 物理学 2013-05-29 K. T. Law , Patrick A. Lee , T. K. Ng

We propose a method of measuring the fermion parity lifetime of Majorana fermion modes due to quasiparticle poisoning. We model quasiparticle poisoning by coupling the Majorana modes to electron reservoirs, explicitly breaking parity…

介观与纳米尺度物理 · 物理学 2014-04-30 Jacob R. Colbert , Patrick A. Lee

The Chern number, nu, as a topological invariant that identifies the winding of the ground state in the particle-hole space, is a definitive theoretical signature that determines whether a given superconducting system can support Majorana…

超导电性 · 物理学 2013-07-16 Jiannis K. Pachos , Emilio Alba , Ville Lahtinen , Juan J. Garcia-Ripoll

We consider an interferometer based on artificially induced topological superconductivity and chiral 1D Majorana fermions. The (non-topological) superconducting island inducing the superconducting correlations in the topological substrate…

介观与纳米尺度物理 · 物理学 2021-08-04 Dmitriy S. Shapiro , Alexander D. Mirlin , Alexander Shnirman

It is known that a non-local complex fermion can be written in terms of two Majorana fermions. We exploit this fact to explain the system of two Majorana zero modes bound to a vortex and an anti-vortex, on the surface of a topological…

高能物理 - 理论 · 物理学 2022-11-10 Mehran Zahiri Abyaneh , Mehrdad Farhoudi

The Majorana fermion can be described by a real wave function with only two phases (0 and {\pi}) which provide a controllable degree of freedom. We propose a strategy to regulate the phase of the chiral Majorana state by coupling with a…

介观与纳米尺度物理 · 物理学 2018-04-03 Yan-Feng Zhou , Zhe Hou , Ying-Tao Zhang , Qing-Feng Sun

We calculate the full counting statistics of charge transfer in a chiral Majorana interferometer - a setup where a Dirac mode (an electron-hole mode) is split into two Majorana modes that encircle a number of h/2e vortices in a topological…

介观与纳米尺度物理 · 物理学 2025-08-07 C. W. J. Beenakker

Chiral Majorana-fermion modes are shown to emerge as edge excitations in a superconductor--topological-insulator hybrid structure that is subject to a magnetic field. The velocity of this mode is tunable by changing the magnetic-field…

介观与纳米尺度物理 · 物理学 2014-02-19 Rakesh P. Tiwari , U. Zülicke , C. Bruder

We study the quantum dynamics of Majorana and regular fermion bound states coupled to a quasi-one-dimensional metallic lead. The dynamics following the quench in the coupling to the lead exhibits a series of dynamical revivals as the bound…

强关联电子 · 物理学 2017-06-30 Daniel Dahan , Mostafa Tanhayi Ahari , Gerardo Ortiz , Babak Seradjeh , Eytan Grosfeld

The nonlocal nature of the fermionic mode spanned by a pair of Majorana bound states in a one-dimensional topological superconductor has inspired many proposals aiming at demonstrating this property in transport. In particular, transport…

超导电性 · 物理学 2015-09-01 Jascha Ulrich , Fabian Hassler

Zero energy Majorana fermion states (Majoranas) can arise at the ends of a semiconducting wire in proximity with a superconductor. A first generation of experiments has detected a zero bias conductance peak in these systems that strongly…

强关联电子 · 物理学 2013-12-25 F. J. Burnell , Alexander Shnirman , Yuval Oreg

We investigate the spectral and transport properties of a double quantum dot laterally attached to a topological superconducting nanowire, hosting the Majorana zero-energy modes. Specifically, we consider a geometry, in which the outer…

介观与纳米尺度物理 · 物理学 2022-02-21 Piotr Majek , Grzegorz Górski , Tadeusz Domański , Ireneusz Weymann
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