中文
相关论文

相关论文: Fano Effect through Parallel-coupled Double Coulom…

200 篇论文

With the help of the Green function technique and the equation of motion approach, the electronic transport through a parallel-coupled double quantum dot(DQD) is theoretically studied. Owing to the inter-dot coupling, the bonding and…

介观与纳米尺度物理 · 物理学 2016-08-16 Haizhou Lu , Rong Lü , Bang-Fen Zhu

In this paper, the Coulomb-induced changes of Fano interference in electronic transport through a double quantum dot Aharonov-Bohm ring are discussed. It is found that the Coulomb interaction in the quantum dot in the reference channel can…

介观与纳米尺度物理 · 物理学 2015-05-14 Weijiang Gong , Xuefeng Xie , Guozhu Wei

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

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

In the present work we theoretically study thermoelectric transport and heat transfer in a junction including a $T$-shaped double quantum dot coupled to nonmagnetic electrodes and supplemented with a third dot in a parallel configuration.…

介观与纳米尺度物理 · 物理学 2022-07-27 Natalya A. Zimbovskaya

Based on Keldysh non-equilibrium Green function method, we have investigated spin current production in a hybrid T-shaped device, consisting of a central quantum dot connected to the leads and a side dot which only couples to the central…

介观与纳米尺度物理 · 物理学 2018-03-14 I. L. Fernandes , G. G. Cabrera

We investigate the nonequilibrium transport properties of a double quantum dot system connected in parallel to two leads, including intradot electron-electron interaction. In the absence of interactions the system supports a bound state in…

介观与纳米尺度物理 · 物理学 2016-07-04 Miguel A. Sierra , M. Saiz-Bretin , F. Dominguez-Adame , David Sanchez

We present experimental results and a model to solve the problem of "in-phase Coulomb peaks" observed in transport through a quantum dot. In a marginal region between Coulomb-blockade and open-dot, we have observed Fano-type interference…

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

The Fano effect, which occurs through the quantum-mechanical cooperation between resonance and interference, can be observed in electron transport through a hybrid system of a quantum dot and an Aharonov-Bohm ring. While a clear correlation…

介观与纳米尺度物理 · 物理学 2016-08-31 Kensuke Kobayashi , Hisashi Aikawa , Shingo Katsumoto , Yasuhiro Iye

We studied the effects of superconducting quantum correlations in a system consisting of two quantum dots, two normal leads, and a superconductor. Using the non-equilibrium Green's functions method, we analyzed the transmission, density of…

介观与纳米尺度物理 · 物理学 2023-11-29 A. González I. , A. M. Calle , M. Pacheco , E. C. Siqueira , Pedro A. Orellana

We investigate theoretically the transport properties of the side-coupled double quantum dots in connection with the experimental study of Sasaki {\it et al.} Phys.Rev.Lett.{\bf 103}, 266806 (2009). The novelty of the set-up consists in…

介观与纳米尺度物理 · 物理学 2016-08-14 A. Aldea , M. Ţolea , I. V. Dinu

The electronic transport through a triple quantum dot molecule attached in parallel to leads in presence of a magnetic flux is studied. Analytical expressions of the linear conductance and density of states for the molecule in equilibrium…

介观与纳米尺度物理 · 物理学 2009-11-11 M. L. Ladrón de Guevara , P. A. Orellana

We investigate the Fano-Kondo interplay in an Aharonov-Bohm ring with an embedded non-interacting quantum dot and a Coulomb interacting quantum dot. Using a slave-boson mean-field approximation we diagonalize the Hamiltonian via scattering…

介观与纳米尺度物理 · 物理学 2015-06-12 R. R. Agundez , J. Verduijn , S. Rogge , M. Blaauboer

The Kondo effect and the Fano-Kondo effect are important phenomena that have been observed in quantum dots (QDs). We theoretically investigate the transport properties of a coupled QD system in order to study the possibility of detecting a…

强关联电子 · 物理学 2013-05-09 Tetsufumi Tanamoto , Yu-xi Liu , Xuedong Hu , Franco Nori

We present lateral transport measurements on strongly, vertically coupled quantum dots formed in separate quantum wells in a GaAs/AlGaAs heterostructure. Coulomb oscillations are observed forming a honeycomb lattice consistent with two…

介观与纳米尺度物理 · 物理学 2009-11-11 A. W. Rushforth , C. G. Smith , I. Farrer , D. A. Ritchie , G. A. C. Jones , D. Anderson , M. Pepper

We theoretically study the Fano-Kondo effect in a triple quantum dot (QD) system where two QDs constitute a two-level system and the other QD works in a detector with electrodes. We found that the Fano dip is clearly modulated by strongly…

强关联电子 · 物理学 2014-01-08 Tetsufumi Tanamoto , Yoshifumi Nishi

We investigate low-temperature transport characteristics of a side-coupled double quantum dot where only one of the dots is directly connected to the leads. We observe Fano resonances, which arise from interference between discrete levels…

介观与纳米尺度物理 · 物理学 2015-05-14 S. Sasaki , H. Tamura , T. Akazaki , T. Fujisawa

We theoretically compare transport properties of Fano-Kondo effect with those of Fano effect. We focus on shot noise characteristics of a triple quantum dot (QD) system in the Fano-Kondo region at zero temperature, and discuss the effect of…

强关联电子 · 物理学 2015-05-13 Tetsufumi Tanamoto , Yoshifumi Nishi , Shinobu Fujita

We study the zero-bias conductance through the system of two quantum dots, one of which is embedded directly between the source and drain electrodes, while the second dot is side-coupled to the first one through a tunneling junction.…

介观与纳米尺度物理 · 物理学 2010-08-10 Rok Zitko

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
‹ 上一页 1 2 3 10 下一页 ›