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We study transport through a quantum dot in the fractional quantum Hall regime with filling factors \nu=2/3 and \nu=5/2, weakly coupled to the leads. We account for both injection of electrons to/from the leads, and quasiparticle…

介观与纳米尺度物理 · 物理学 2015-04-22 Alex Kamenev , Yuval Gefen

Superconducting devices subject to strong charging energy interactions and Coulomb blockade are one of the key elements for the development of nanoelectronics and constitute common building blocks of quantum computation platforms and…

介观与纳米尺度物理 · 物理学 2022-09-29 Chia-Min Chung , Matteo M. Wauters , Michele Burrello

We study conductance through a quantum dot under Coulomb blockade conditions in the presence of an external periodic perturbation. The stationary state is determined by the balance between the heating of the dot electrons by the…

介观与纳米尺度物理 · 物理学 2009-11-10 D. M. Basko , V. E. Kravtsov

We consider transport through a single N@C60 molecule, weakly coupled to metallic leads. Employing a density-matrix formalism we derive rate equations for the occupation probabilities of many-particle states of the molecule. We calculate…

介观与纳米尺度物理 · 物理学 2007-05-23 Florian Elste , Carsten Timm

The theory of dynamical Coulomb blockade is extended to tunneling elements driven by a time-dependent voltage. It is shown that for standard set-ups where an external voltage is applied to a tunnel junction via an impedance, time-dependent…

介观与纳米尺度物理 · 物理学 2015-12-22 Hermann Grabert

We develop the microscopic theory of the extrinsic spin Hall conductivity of a two-dimensional electron gas, including skew-scattering, side-jump, and Coulomb interaction effects. We find that while the spin-Hall conductivity connected with…

介观与纳米尺度物理 · 物理学 2009-11-11 E. M. Hankiewicz , Giovanni Vignale

Doped organic semiconductors are critical to emerging device applications, including thermoelectrics, bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily…

We study nonlinear transport for two coupled one-dimensional quantum wires or carbon nanotubes described by Luttinger liquid theory. Transport properties are shown to crucially depend on the contact length $L_c$. For a special interaction…

强关联电子 · 物理学 2009-10-31 A. Komnik , R. Egger

The recently proposed density functional theory for steady-state transport (i-DFT) is extended to include temperature gradients between the leads. Within this framework, a general and exact expression is derived for the linear Seebeck…

强关联电子 · 物理学 2019-12-04 Nahual Sobrino , Roberto D'Agosta , Stefan Kurth

We consider the production of mobile and nonlocal pairwise spin-entangled electrons from tunneling of a BCS-superconductor (SC) to two normal Fermi liquid leads. The necessary mechanism to separate the two electrons coming from the same…

介观与纳米尺度物理 · 物理学 2009-11-10 Patrik Recher , Daniel Loss

Quantum fluctuations are imprinted with valuable information about transport processes. Experimental access to this information is possible, but challenging. We introduce the dynamical Coulomb blockade (DCB) as a local probe for…

Non-equilibrium transport through a quantum dot with one spin-split single-particle level is studied in the cotunneling regime at low temperatures. The Coulomb diamond can be subdivided into parts differing in at least one of two respects:…

介观与纳米尺度物理 · 物理学 2009-12-07 Daniel Becker , Daniela Pfannkuche

By propagating the many-body Schr\"odinger equation, we determine the exact time-dependent Kohn-Sham potential for a system of strongly correlated electrons which undergo field-induced tunneling. Numerous features are entirely absent from…

We study low-temperature transport through a Coulomb blockaded quantum dot (QD) contacted by a normal (N), and a superconducting (S) electrode. Within an effective cotunneling model the conduction electron self energy is calculated to…

超导电性 · 物理学 2010-12-10 V. Koerting , B. M. Andersen , K. Flensberg , J. Paaske

Linear conductance through a quantum dot is calculated under a finite magnetic field using the modified perturbation theory. The method is based on the second-order perturbation theory with respect to the Coulomb repulsion, but the…

介观与纳米尺度物理 · 物理学 2009-10-31 Osamu Takagi , Tetsuro Saso

We investigated the peculiarities of non-equilibrium charge configurations in the system of two strongly coupled quantum dots (QDs) weakly connected to the reservoirs in the presence of Coulomb correlations. We revealed that total electron…

介观与纳米尺度物理 · 物理学 2014-09-23 V. N. Mantsevich , N. S. Maslova , P. I. Arseyev

Popular approximations to the exchange-correlation (xc) energy of density functional theory do not yield the spatial `step' structures in the exact xc potential which are necessary to describe dissociation and electron excitation with the…

材料科学 · 物理学 2021-09-08 M. J. P. Hodgson

We applied an improved Coulomb correction method developed by us recently to data on identical KK-pairs production in S + Pb and p + Pb reactions at 200 GeV/c obtained by NA44 Collaboration. To analyse the whole range of the momentum…

高能物理 - 唯象学 · 物理学 2009-10-28 M. Biyajima T. Mizoguchi , T. Osada , G. Wilk

We theoretically investigate the effect of inter-molecular Coulomb interactions on transport through molecular monolayers (or other devices based on a large number of nanoscale conductors connected in parallel). Due to the interactions, the…

介观与纳米尺度物理 · 物理学 2013-04-09 Martin Leijnse

We show that Coulomb drag in hydrodynamic bilayer systems leads to additional viscosity terms in the hydrodynamic equations, i.e., the drag and drag-Hall viscosities, besides the well-known kinematic and Hall viscosities. These new…

介观与纳米尺度物理 · 物理学 2023-03-29 Eddwi H. Hasdeo , Edvin G. Idrisov , Thomas L. Schmidt