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相关论文: Current noise cross correlation mediated by Majora…

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We examine the transport properties of a double quantum dot system coupled to a topological superconducting nanowire hosting Majorana quasiparticles at its ends, with the central quantum dot attached to the left and right leads. We focus on…

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

We investigate the equilibrium and non-equilibrium transport through a quantum dot in the Kondo regime, embedded between a normal metal and a topological superconductor supporting Majorana bound states at its end points. We find that the…

介观与纳米尺度物理 · 物理学 2014-11-07 Razvan Chirla , I. V. Dinu , V. Moldoveanu , Catalin Pascu Moca

We study Hanbury-Brown and Twiss current cross-correlations in a three-terminal junction where a central topological superconductor (TS) nanowire, bearing Majorana bound states at its ends, is connected to two normal leads. Relying on a…

介观与纳米尺度物理 · 物理学 2017-03-03 T. Jonckheere , J. Rech , A. Zazunov , R. Egger , T. Martin

The nonlocal nature of the Majorana zero modes implies an inherent teleportation channel and unique transport signatures for Majorana identification. In this work we make an effort to eliminate some inconsistencies between the Bogoliubov-de…

介观与纳米尺度物理 · 物理学 2023-09-26 Xin-Qi Li , Luting Xu

We analyze dynamical transport properties of a hybrid nanostructure, comprising a correlated quantum dot embedded between the source and drain electrodes, which are subject to an ac voltage, focusing on signatures imprinted on the charge…

介观与纳米尺度物理 · 物理学 2024-10-02 Krzysztof P. Wójcik , Tadeusz Domański , Ireneusz Weymann

We study the properties of a quantum dot coupled to a one-dimensional topological superconductor and a normal lead and discuss the interplay between Kondo and Majorana-induced couplings in quantum dot. The latter appears due to the presence…

介观与纳米尺度物理 · 物理学 2014-09-24 Meng Cheng , Michael Becker , Bela Bauer , Roman M. Lutchyn

We theoretically investigate electronic transport through a junction where a quantum dot (QD) is tunnel coupled on both sides to semiconductor nanowires with strong spin-orbit interaction and proximity-induced superconductivity. The results…

超导电性 · 物理学 2014-12-09 Guang-Yao Huang , Martin Leijnse , Karsten Flensberg , Hongqi Xu

We calculate the nonsymmetrized current noise in a quantum dot connected to two reservoirs by using the non-equilibrium Green function technique. We show that both the current auto-correlator (inside a single reservoir) and the current…

介观与纳米尺度物理 · 物理学 2016-07-08 R. Zamoum , M. Lavagna , A. Crépieux

We report a study of spin dependent transport in a system composed of a quantum dot coupled to a normal metal lead and a ferromagnetic lead (NM-QD-FM). We use the master equation approach to calculate the spin-resolved currents in the…

介观与纳米尺度物理 · 物理学 2007-05-23 F. M. Souza , J. C. Egues , A. P. Jauho

We report measurements of current noise auto- and cross-correlation in a tunable quantum dot with two or three leads. As the Coulomb blockade is lifted at finite source-drain bias, the auto-correlation evolves from super-Poissonian to…

介观与纳米尺度物理 · 物理学 2009-11-13 Y. Zhang , L. DiCarlo , D. T. McClure , M. Yamamoto , S. Tarucha , C. M. Marcus , M. P. Hanson , A. C. Gossard

We consider the out-of-equilibrium behavior of a general class of mesoscopic devices composed of several superconducting or/and normal metal leads separated by quantum dots. Starting from a microscopic Hamiltonian description, we provide a…

超导电性 · 物理学 2020-09-02 R. Jacquet , A. Popoff , K. -I. Imura , J. Rech , T. Jonckheere , L. Raymond , A. Zazunov , T. Martin

We study transport properties of a quantum dot coupled to a Majorana zero mode and two normal leads. We investigate the full counting statistics of charge tunneling events which allows one to extract complete information about current…

介观与纳米尺度物理 · 物理学 2015-11-25 Dong E. Liu , Alex Levchenko , Roman M. Lutchyn

Non-equilibrium Green's function technique has been used to calculate spin-dependent electronic transport through a quantum dot in the Kondo regime. The dot is described by the Anderson Hamiltonian and is coupled either symmetrically or…

其他凝聚态物理 · 物理学 2009-11-11 R. Swirkowicz , M. Wilczynski , J. Barnas

We examine cross-correlations (CCs) in the tunneling currents through two parallel interacting quantum dots coupled to four independent ferromagnetic electrodes. We find that when either one of the two circuits is in the parallel…

介观与纳米尺度物理 · 物理学 2015-05-13 Bing Dong , X. L. Lei , N. J. M. Horing

In this paper, we derive the equations of motion for a system composed of a spinless quantum dot coupled to two normal leads and two Majorana bound states (MBSs), utilizing the auxiliary-mode expansion method and the nonequilibrium Green…

介观与纳米尺度物理 · 物理学 2025-07-01 Cong Li , Bing Dong

Nonequilibrium properties of correlated quantum matter are being intensively investigated because of the rich interplay between external driving and the many-body correlations. Of particular interest is the nonequilibrium behavior near a…

强关联电子 · 物理学 2021-02-17 G. Zhang , C. -H. Chung , C. T. Ke , C. -Y. Lin , H. Mebrahtu , A. I. Smirnov , G. Finkelstein , H. U. Baranger

We consider a double quantum dot coupled to two normal leads and one superconducting lead, modeling the Cooper pair beam splitter studied in two recent experiments. Starting from a microscopic Hamiltonian we derive a general expression for…

介观与纳米尺度物理 · 物理学 2011-03-25 D. Chevallier , J. Rech , T. Jonckheere , T. Martin

We propose an approach allowing the computation of currents and their correlations in interacting multiterminal mesoscopic systems involving quantum dots coupled to normal and/or superconducting leads. The formalism relies on the expression…

介观与纳米尺度物理 · 物理学 2012-01-18 J. Rech , D. Chevallier , T. Jonckheere , T. Martin

We propose a continuous weak measurement protocol testing the nonlocality of Majorana bound states through current shot noise correlations. The experimental setup contains a topological superconductor island with three normal-conducting…

介观与纳米尺度物理 · 物理学 2020-03-04 Jan Manousakis , Carolin Wille , Alexander Altland , Reinhold Egger , Karsten Flensberg , Fabian Hassler

In this minireview, we outline the recent experimental and theoretical progress in the creation, characterization and manipulation of Majorana bound states (MBSs) in semiconductor-superconductor (SC) hybrid structures. After an introductory…

介观与纳米尺度物理 · 物理学 2020-07-10 Alexander Schuray , Daniel Frombach , Sunghun Park , Patrik Recher