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相关论文: Heat conductance oscillations in two weakly connec…

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We propose a model describing Seebeck effect on a weak link between two quantum systems with fine-tunable ground states of Fermi and Non-Fermi liquid origin. The experimental realization of the model can be achieved by utilizing the quantum…

介观与纳米尺度物理 · 物理学 2018-02-06 T. K. T. Nguyen , M. N. Kiselev

We calculate the electronic contribution to the thermal conductance in a quantum dot that is weakly coupled via tunnel barriers to two electrons reservoirs. A linear response model is derived for the calculation of the heat current Q…

介观与纳米尺度物理 · 物理学 2009-11-11 Margarita Tsaousidou , George P. Triberis

We review recent developments in nonlinear quantum transport through nanostructures and mesoscopic systems driven by thermal gradients or in combination with voltage biases. Low-dimensional conductors are excellent platforms to analyze both…

介观与纳米尺度物理 · 物理学 2016-11-14 David Sanchez , Rosa Lopez

We investigate theoretically the thermoelectric transport through a circuit implementation of the three-channel "charge" Kondo model quantum simulator [Z. Iftikhar et al., Science 360, 1315 (2018)]. The universal temperature scaling law of…

介观与纳米尺度物理 · 物理学 2020-07-09 T. K. T. Nguyen , M. N. Kiselev

We investigate fluctuations of electric and heat currents, along with their cross-correlations, in a two-channel charge Kondo circuit driven by either a voltage bias or a temperature gradient applied across the weak link. The ratios of…

介观与纳米尺度物理 · 物理学 2026-04-22 T. K. T. Nguyen , J. Rech , T. Martin , M. N. Kiselev

We develop a conformal-field theory approach for investigation of the quantum charge-, heat- and thermoelectric- transport through a quantum impurity fine tuned to a non-Fermi liquid regime. The non-Fermi-liquid operational mode is…

介观与纳米尺度物理 · 物理学 2020-12-07 D. B. Karki , Mikhail N. Kiselev

A theory of thermal transport in a two-channel Kondo system, such as the one formed by a small quantum dot coupled to two leads and to a larger dot, is formulated. The interplay of the two screening constants allows an exploration of the…

介观与纳米尺度物理 · 物理学 2011-06-27 C. P. Moca , A. Roman , D. C. Marinescu

We study thermoelectric phenomena in a system consisting of strongly correlated quantum dot coupled to external leads in the Kondo regime. We calculate linear and nonlinear electrical and thermal conductance and thermopower of the quantum…

介观与纳米尺度物理 · 物理学 2009-11-13 M. Krawiec , K. I. Wysokinski

Strong correlation, when combined with dissipation in open systems, can lead to a variety of exotic quantum phenomena. Here, we study nontrivial interplays between non-Fermi liquid behaviors emerging from strong correlation and…

强关联电子 · 物理学 2026-03-03 Wei-Zhu Yi , Yun Chen , Jun-Jun Pang , Hong Chen , Baigeng Wang , Rui Wang

A Fermi Liquid theory is developed for the persistent current past a side coupled quantum dot yielding analytical predictions for the behavior of the first two harmonics of the persistent current as a function of applied magnetic flux. The…

强关联电子 · 物理学 2007-05-23 Ian Affleck , Erik S. Sørensen

We theoretically study the nonequilibrium thermoelectric transport properties of a strongly-correlated molecule (or quantum dot) embedded in a tunnel junction. Assuming that the coupling of the molecule to the contacts is asymmetric, we…

介观与纳米尺度物理 · 物理学 2023-02-22 Anand Manaparambil , Ireneusz Weymann

We study the electric and thermoelectric transport properties of correlated quantum dots coupled to two ferromagnetic leads and one superconducting electrode. Transport through such hybrid devices depends on the interplay of…

介观与纳米尺度物理 · 物理学 2015-06-19 Krzysztof P. Wojcik , Ireneusz Weymann

The low temperature electrical conductance through correlated quantum dots provides a sensitive probe of the physics (e.g., of Fermi-liquid vs non-Fermi-liquid behavior) of such systems. Here, we investigate the role of level asymmetry…

强关联电子 · 物理学 2013-04-29 L. Merker , S. Kirchner , E. Muñoz , T. A. Costi

We consider effects of magnetic field on the thermopower and thermoconductance of a single-electron transistor based on a quantum dot strongly coupled to one of the leads by a single-mode quantum point contact. We show appearance of two new…

介观与纳米尺度物理 · 物理学 2015-05-14 T. K. T. Nguyen , M. N. Kiselev , V. E. Kravtsov

We develop a method of theoretically investigating the charge, energy and heat transport in the presence of the charge Kondo correlations. The Coulomb blockade oscillations of heat conductance in the single electron transistor exhibiting…

介观与纳米尺度物理 · 物理学 2021-01-01 D. B. Karki

The transport across a Kondo-correlated quantum dot coupled to two leads with independent temperatures and chemical potentials is studied using a controlled non-perturbative, and in this sense exact numeric treatment based on a hybrid…

介观与纳米尺度物理 · 物理学 2024-09-26 Anand Manaparambil , Andreas Weichselbaum , Jan von Delft , Ireneusz Weymann

We review mechanisms of low-temperature electronic transport through a quantum dot weakly coupled to two conducting leads. Transport in this case is dominated by electron-electron interaction. At temperatures moderately lower than the…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Pustilnik , L. I. Glazman

We consider a strongly interacting quantum dot connected to two leads held at quite different temperatures. Our aim is to study the behavior of the Kondo effect in the presence of large thermal biases. We use three different approaches,…

介观与纳米尺度物理 · 物理学 2017-09-04 Miguel A. Sierra , David Sanchez , Rosa Lopez

The non-Fermi-liquid properties of an ultrasmall quantum dot coupled to a lead and to a quantum box are investigated. Tuning the ratio of the tunneling amplitudes to the lead and box, we find a line of two-channel Kondo fixed points for…

强关联电子 · 物理学 2007-05-23 Frithjof B. Anders , Eran Lebanon , Avraham Schiller

The effects of electronic correlations and orbital degeneracy on thermoelectric properties are studied within the context of multi-orbital Hubbard models on different lattices. We use dynamical mean field theory with iterative perturbation…

强关联电子 · 物理学 2015-06-16 Mehdi Kargarian , Gregory A. Fiete
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