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相关论文: Coherent transport in disordered metals: zero dime…

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The conductance of disordered wires with symplectic symmetry is studied by the supersymmetric field theory. Special attention is focused on the case where the number of conducting channels is odd. Such a situation can be realized in…

介观与纳米尺度物理 · 物理学 2009-11-10 Yositake Takane

Nonequilibrium transport properties are determined exactly for an adiabatically connected single channel quantum wire containing one impurity. Employing the Luttinger liquid model with interaction parameter $g$, for very strong interactions…

凝聚态物理 · 物理学 2009-10-31 R. Egger , H. Grabert , A. Koutouza , H. Saleur , F. Siano

We analyze and clarify the transport properties of a one-dimensional metallic nanoparticle array with interaction between charges restricted to charges placed in the same conductor. We study the threshold voltage, the I-V curves and the…

介观与纳米尺度物理 · 物理学 2009-11-13 E. Bascones , V. Estevez , J. A. Trinidad , A. H. MacDonald

We evaluate the electron-electron interaction corrections to the electronic thermal conductivity in a disordered conductor in the diffusive regime. We use a diagrammatic many-body method analogous to that of Altshuler and Aronov for the…

无序系统与神经网络 · 物理学 2013-05-29 Douglas R. Niven , Robert A. Smith

We study the transport properties of a finite three dimensional disordered conductor, for both weak and strong scattering on impurities, employing the real-space Green function technique and related Landauer-type formula. The dirty metal is…

无序系统与神经网络 · 物理学 2009-10-31 Branislav K. Nikolic , Philip B. Allen

We determine analytically the distribution of conductances of quasi one-dimensional disordered electron systems, neglecting electron-electron interaction, for all strengths of disorder. We find that in the crossover region between the…

介观与纳米尺度物理 · 物理学 2017-09-27 P. Woelfle , K. A. Muttalib

Using nonequilibrium perturbation theory, we investigate the nonlinear transport through a quantum dot in the Kondo regime in the presence of a magnetic field. We calculate the leading logarithmic corrections to the local magnetization and…

强关联电子 · 物理学 2007-05-23 J. Paaske , A. Rosch , P. Wölfle

The symmetry properties of transport beyond the linear regime in chaotic quantum dots are investigated experimentally. A component of differential conductance that is antisymmetric in both applied source-drain bias V and magnetic field B,…

介观与纳米尺度物理 · 物理学 2015-06-25 D. M. Zumbuhl , C. M. Marcus , M. P. Hanson , A. C. Gossard

We study transport properties of weakly interacting one-dimensional electron systems including on an equal footing thermal equilibration due to three-particle collisions and the effects of large-scale inhomogeneities. We show that…

介观与纳米尺度物理 · 物理学 2015-05-18 Alex Levchenko , Tobias Micklitz , Jerome Rech , K. A. Matveev

Quantum transport in disordered magnetic fields is investigated numerically in two-dimensional systems. In particular, the case where the mean and the fluctuation of disordered magnetic fields are of the same order is considered. It is…

无序系统与神经网络 · 物理学 2009-11-10 Tohru Kawarabayashi , Tomi Ohtsuki

We pioneerly investigate the non-equilibrium transport near a quantum phase transition in a generic and relatively simple case model, the dissipative resonant level model, that has many ramifications in nanosystems. We formulate a rigorous…

介观与纳米尺度物理 · 物理学 2015-05-13 Chung-Hou Chung , Karyn Le Hur , Matthias Vojta , Peter Wölfle

We investigate transport properties of different realizations of one-dimensional quantum wires coupled to a number of external electrodes in terms of the full counting statistics. Focusing on the set-ups in which edge states of Majorana…

介观与纳米尺度物理 · 物理学 2016-03-15 A. Komnik

An approach which allows to include the corrections from non-orthogonality of electron states in contacts and quantum dots is developed. Comparison of the energy levels and charge distributions of electrons in 1D quantum dot (QD) in…

介观与纳米尺度物理 · 物理学 2009-11-07 J. Fransson , O. Eriksson , B. Johansson , I. Sandalov

We consider resonant transmission through a finite-length quantum wire connected to leads via finite transparency junctions. The coherent electron transport is strongly modified by the Coulomb interaction. The low-temperature…

介观与纳米尺度物理 · 物理学 2009-11-13 N. B. Kopnin , Y. M. Galperin , V. M. Vinokur

The influence of excited levels on nonlinear transport properties of a quantum dot weakly coupled to leads is studied using a master--equation approach. A charging model for the dot is compared with a quantum mechanical model for…

凝聚态物理 · 物理学 2009-10-22 W. Pfaff , D. Weinmann , W. Haeusler , B. Kramer , U. Weiss , PTB Braunschweig

In disordered metals, electron-electron interactions are the origin of a small correction to the conductivity, the "Altshuler-Aronov correction". Here we investigate the Altshuler-Aronov correction of a conductor in which the electron…

介观与纳米尺度物理 · 物理学 2009-11-13 Piet W. Brouwer , Joern N. Kupferschmidt

We study transport in a class of physical systems possessing two conserved chiral charges. We describe a relation between universality of transport properties of such systems and the chiral anomaly. We show that the non-vanishing of a…

介观与纳米尺度物理 · 物理学 2009-10-31 Anton Yu. Alekseev , Vadim V. Cheianov , Juerg Froehlich

A time-dependent electric field gives rise to a stationary non-equilibrium current I^{(2)} around a mesoscopic metal ring threaded by a magnetic flux. We show that this current, which is proportional to the intensity of the field, is…

介观与纳米尺度物理 · 物理学 2009-10-30 Peter Kopietz , Axel Voelker

The electron transport in a 1D conductor with an isolated local defect such as an impurity or a non-adiabatic contact is studied theoretically. New regime of conduction in correlated 1D systems is predicted beyond the well-known regime of…

强关联电子 · 物理学 2015-10-01 S. N. Artemenko , P. P. Aseev , D. S. Shapiro , R. R. Vakhitov

Understanding charge transport in strongly correlated systems remains a central challenge in condensed matter physics, particularly in light of the ubiquitous linear-in-$T$ resistivity observed in strange metals across many platforms from…

强关联电子 · 物理学 2026-04-06 Shuo Liu , Yuhao Ma , Hitesh J. Changlani , Philip W. Phillips , B. Andrei Bernevig