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相关论文: Fano effect in a thermally induced transport throu…

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The role of energy exchange between a quantum system and its environment is investigated from the perspective of the Onsager conductance matrix. We consider the thermoelectric linear transport of an interacting quantum dot coupled to two…

介观与纳米尺度物理 · 物理学 2017-06-07 Guillem Rosselló , Rosa López , Rafael Sánchez

We discuss the thermoelectric properties assisted by the Fano effect of a parallel double quantum dot (QD) structure. By adjusting the couplings between the QDs and leads, we facilitate the nonresonant and resonant channels for the Fano…

介观与纳米尺度物理 · 物理学 2011-12-22 Wei-Jiang Gong , Guo-Zhu Wei

We consider a lateral double-dot system in the Coulomb blockade regime with a single spin-1/2 on each dot, mutually coupled by an anti-ferromagnetic exchange interaction. Each of the two dots is contacted by two leads. We demonstrate that…

强关联电子 · 物理学 2007-08-06 V. Koerting , P. Wölfle , J. Paaske

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 systematically investigate electron transport through double quantum dots with particular emphasis on interference induced via multiple paths of electron propagation. By means of the slave-boson mean-field approximation, we calculate the…

介观与纳米尺度物理 · 物理学 2007-05-23 Yoichi Tanaka , Norio Kawakami

We analyze the quantum interference effects appearing in the charge current through the double quantum dots coupled in T-shape configuration to an isotropic superconductor and metallic lead. Owing to proximity effect the quantum dots…

强关联电子 · 物理学 2011-11-09 J. Baranski , T. Domanski

In this article we review aspects of charge and heat transport in interacting quantum dots and molecular junctions under stationary and time-dependent non-equilibrium conditions due to finite electrical and thermal bias. In particular, we…

介观与纳米尺度物理 · 物理学 2015-06-16 F. Haupt , M. Leijnse , H. L. Calvo , L. Classen , J. Splettstoesser , M. R. Wegewijs

We analyze the heat current traversing a quantum dot sandwiched between a ferromagnetic and a superconducting electrode. The heat flow generated in response to a voltage bias presents rectification as a function of the gate potential…

介观与纳米尺度物理 · 物理学 2018-04-24 Sun-Yong Hwang , David Sanchez

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 interplay between the Kondo effect and the inter-dot magnetic interaction in a coupled-dot system is studied. An exact result for the transport properties at zero temperature is obtained by diagonalizing a cluster, composed by the…

强关联电子 · 物理学 2009-10-31 C. A. Büsser , E. V. Anda , A. L Lima , Maria A. Davidovich , G. Chiappe

We investigate the heat flow transport properties of a parallel-coupled double quantum-dot system connected to two reservoirs with a temperature bias in the Coulomb blockade regime. We demonstrate that the effects of thermal rectification…

介观与纳米尺度物理 · 物理学 2021-09-15 Yanchao Zhang , Shanhe Su

Following a theoretical proposal on multi-impurity charge Kondo circuits [T. K. T. Nguyen and M. N. Kiselev, Phys. Rev. B {\bf 97}, 085403 (2018)] and the experimental breakthrough in fabrication of the two-site Kondo simulator [W. Pouse…

强关联电子 · 物理学 2024-03-22 T. K. T. Nguyen , H. Q. Nguyen , M. N. Kiselev

We analyze the transport properties of a double quantum dot device in the side-coupled configuration. A small quantum dot (QD), having a single relevant electronic level, is coupled to source and drain electrodes. A larger QD, whose…

介观与纳米尺度物理 · 物理学 2014-03-12 J. A. Andrade , Pablo S. Cornaglia , A. A. Aligia

We study the Kondo effect and related transport properties in orbitally degenerate vertical quantum dot systems with plural electrons. Applying the non-crossing approximation to the three-orbital Anderson impurity model with the finite…

强关联电子 · 物理学 2008-09-10 Tomoko Kita , Rui Sakano , Takuma Ohashi , Sei-ichiro Suga

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 examine the influence of the superconducting proximity effect on the transport properties of a T-shaped double quantum dot strongly coupled to two normal, nonmagnetic or ferromagnetic leads. We show that the two-stage Kondo screening may…

介观与纳米尺度物理 · 物理学 2018-07-02 Krzysztof P. Wójcik , Ireneusz Weymann

We study thermoelectric effects in Kondo correlated quantum dot coupled to ferromagnetic electrodes by calculating conductance, thermopower and thermal conductance in the Kondo regime. We also study the effect of the asymmetry in the…

介观与纳米尺度物理 · 物理学 2015-06-25 M. Krawiec , K. I. Wysokinski

We investigate non-equilibrium transport of charge and heat through an interacting quantum dot coupled to a finite electron reservoir. Both the quantum dot and the finite reservoir are coupled to conventional electric contacts, i.e.,…

介观与纳米尺度物理 · 物理学 2024-11-19 Stephanie Matern , Saulo V. Moreira , Peter Samuelsson , Martin Leijnse

We study the charge current transmitted through the correlated quantum dot characterized by a finite magnitude of the Coulomb interaction |U|. At low temperatures the correlations can lead to appearance of the spin (for U>0) or charge (for…

强关联电子 · 物理学 2009-05-08 T. Domanski , A. Donabidowicz

A detailed study of the low-temperature physics of an interacting double quantum dot system in a T-shape configuration is presented. Each quantum dot is modeled by a single Anderson impurity and we include an inter-dot electron-electron…

介观与纳米尺度物理 · 物理学 2013-03-05 Irisnei L. Ferreira , P. A. Orellana , G. B. Martins , F. M. Souza , E. Vernek