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相关论文: Formation of Fano resonance in double quantum dot …

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We explore the electron dynamics of a system composed of double quantum dot embedded between metallic and superconducting leads in a T-shape geometry. In nanoscopic systems, where electron transfer between electrodes can be realized via…

介观与纳米尺度物理 · 物理学 2023-07-25 Jan Baranski , Magdalena Baranska , Tomasz Zienkiewicz , Konrad J. Kapcia

We analyze a quantum dot strongly coupled to the conducting leads via quantum point contacts - Fano regime of transport - and report a variety of resonant states which demonstrate the dominance of the interacting resonances in the…

介观与纳米尺度物理 · 物理学 2010-08-18 E. R. Racec , U. Wulf , P. N. Racec

Electronic transport through a quantum dot strongly coupled to electrodes is studied within a model with two conduction channels. It is shown that multiple scattering and interference of transmitted waves through both channels lead to Fano…

介观与纳米尺度物理 · 物理学 2009-11-07 Bogdan R. Bulka , Piotr Stefanski

We are considering the time-dependent transport through a discrete system, consiting of a quantum dot T-coupled to an infinite tight-binding chain. The periodic driving that is induced on the coupling between the dot and the chain, leads to…

In this paper, we investigate transient quantum transport in a nanoscale Aharonov-Bohm (AB) interferometer consisting of a laterally coupled double quantum dot (DQD) coupled to the source and drain electrodes. The transient linear…

介观与纳米尺度物理 · 物理学 2018-02-07 Pei-Yun Yang , Wei-Min Zhang

Electron transport through parallel double quantum dot system with interdot tunneling and strong on-site Coulomb interaction is studied in the Kondo regime by using the finite-$U$ slave boson technique. For a system of quantum dots with…

介观与纳米尺度物理 · 物理学 2009-11-10 Guo-Hui Ding , C. K. Kim , K. Nahm

In the present work, we investigate the electronic transport through a T-shape double quantum dot system coupled to two normal leads and to one superconducting lead. We explore the interplay between Kondo and Andreev states due to proximity…

介观与纳米尺度物理 · 物理学 2017-05-23 A. M. Calle , M. Pacheco , G. B. Martins , V. M. Apel , G. A. Lara , P. A. Orellana

We report a transport experiment on the Fano effect in a quantum connecting wire (QW) with a side-coupled quantum dot (QD). The Fano resonance occurs between the QD and the "T-shaped" junction in the wire, and the transport detects…

介观与纳米尺度物理 · 物理学 2009-11-10 Kensuke Kobayashi , Hisashi Aikawa , Akira Sano , Shingo Katsumoto , Yasuhiro Iye

We have observed asymmetric Fano resonances in the conductance of a single electron transistor resulting from interference between a resonant and a nonresonant path through the system. The resonant component shows all the features typical…

介观与纳米尺度物理 · 物理学 2009-10-31 J. Goeres , D. Goldhaber-Gordon , S. Heemeyer , M. A. Kastner , Hadas Shtrikman , D. Mahalu , U. Meirav

Correlation effects on electron transport through a system of T-shaped double-dots are investigated, for which only one of the dots is directly connected to the leads. We evaluate the local density of states and the conductance by means of…

介观与纳米尺度物理 · 物理学 2009-11-07 Yusuke Takazawa , Yoshiki Imai , Norio Kawakami

We study the interference between the Fano and Kondo effects in a side-coupled double-quantum- dot system where one of the quantum dots couples to conduction electron bath while the other dot only side-couples to the first dot via…

介观与纳米尺度物理 · 物理学 2015-05-18 Chung-Hou Chung , Tsung-Han Lee

In the presence of direct trajectories connecting source and drain contacts, the conductance of a quantum dot may exhibit resonances of the Fano type. Since Fano resonances result from the interference of two transmission pathways, their…

介观与纳米尺度物理 · 物理学 2009-10-31 A. A. Clerk , X. Waintal , P. W. Brouwer

Based on calculations of the electronic structure of coupled multiple quantum dots, we study systemically the transport properties of the system driven by an ac electric field. We find qualitative difference between transport properties of…

介观与纳米尺度物理 · 物理学 2009-11-13 Wanyuan Xie , Hui Pan , Weidong Chu , Wei Zhang , Suqing Duan

We study transport through a double quantum dot system in which each quantum dot is coupled to a phonon mode. Such a system can be realized, e.g., using a suspended carbon nanotube. We find that the interplay between strong electron-phonon…

介观与纳米尺度物理 · 物理学 2013-11-26 Stefan Walter , Björn Trauzettel , Thomas L. Schmidt

Transport measurements are presented on a quantum ring that is tunnel-coupled to a quantum dot. When the dot is in the Coulomb blockade regime, but strongly coupled to the open ring, Fano line shapes are observed in the current through the…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Fuhrer , P. Brusheim , T. Ihn , M. Sigrist , K. Ensslin , W. Wegscheider , M. Bichler

Conductance through a system consisting of a wire with side-attached quantum dots is calculated. Such geometry of the device allows to study the coexistence of quantum interference, electron correlations and their influence on conductance.…

介观与纳米尺度物理 · 物理学 2009-11-10 Piotr Stefanski

The transmission of electrons through a non-interacting tight-binding chain with an interacting side quantum dot (QD) is analized. When the Kondo effect develops at the dot the conductance presents a wide minimum, reaching zero at the…

强关联电子 · 物理学 2009-11-07 M. E. Torio , K. Hallberg , A. H. Ceccatto , C. R. Proetto

We consider the transport and the noise characteristics for the case of a T-shape double quantum dot system using the equation of motion method. Our theoretical results, obtained in an approximation equivalent to the Hartree-Fock…

介观与纳米尺度物理 · 物理学 2015-05-13 K. Brown , M. Crisan , I. Tifrea

We model the electron transport current as the photon energy is swept through several resonances of a multi-level quantum dot, embedded in a short quantum wire, coupled to photon cavity. We use a Markovian quantum master equation…

介观与纳米尺度物理 · 物理学 2020-06-12 Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

Electron transport through a spin-orbit-coupled quantum ring is investigated within linear response theory. We show that the finite width of the ring results in the appearance of Fano resonances in the conductance. This turns out to be a…

介观与纳米尺度物理 · 物理学 2011-12-30 M. P. Nowak , B. Szafran , F. M. Peeters
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