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The rate-equation approach is used to describe sequential tunneling through a molecular junction in the Coulomb blockade regime. Such device is composed of molecular quantum dot (with discrete energy levels) coupled with two metallic…

介观与纳米尺度物理 · 物理学 2009-11-11 Kamil Walczak

We explore the prospects to control by use of time-dependent fields quantum transport phenomena in nanoscale systems. In particular, we study for driven conductors the electron current and its noise properties. We review recent…

介观与纳米尺度物理 · 物理学 2007-05-23 Sigmund Kohler , Jörg Lehmann , Peter Hänggi

The transmission of electrons through a non-interacting tight-binding chain with an interacting side quantum dot (QD) is analized. When the Kondo effect develops at the dot the conductance presents a wide minimum, reaching zero at the…

强关联电子 · 物理学 2009-11-07 M. E. Torio , K. Hallberg , A. H. Ceccatto , C. R. Proetto

Negative differential conductance (NDC) is expected to be an essential property to realize fast switching in future electronic devices. We here present a thorough analysis on electron transportability of a simple atomic-scale model…

材料科学 · 物理学 2009-11-07 Shigeru Tsukamoto , Masakazu Aono , Kikuji Hirose

A beam splitter consisting of two normal leads coupled to one end of a topological superconducting nanowire via double quantum dot is investigated. In this geometry, the linear current cross-correlations at zero temperature change signs…

介观与纳米尺度物理 · 物理学 2015-09-16 Zhan Cao , Tie-Feng Fang , Qiao Chen , Hong-Gang Luo

Nonlinear tunneling current through a quantum dot (an Anderson impurity system) subject to both constant and alternating electric fields is studied in the Kondo regime. A systematic diagram technique is developed for perturbation study of…

强关联电子 · 物理学 2016-08-31 Yehuda Goldin , Yshai Avishai

We show that three-dimensional trace anomalies lead to new universal anomalous transport effects on a conformally-flat spacetime with background scalar fields. In contrast to conventional anomalous transports in quantum chromodynamics (QCD)…

高能物理 - 理论 · 物理学 2020-09-01 Mamiya Kawaguchi , Ken Kikuchi

Laser-cooled neutral atoms from a low-velocity atomic source are guided via a magnetic field generated between two parallel wires on a glass substrate. The atoms bend around three curves, each with a 15-cm radius of curvature, while…

An ensemble of particles in thermal equilibrium at temperature $T$, modeled by Nos\`e-Hoover dynamics, moves on a triangular lattice of oriented semi-disk elastic scatterers. Despite the scatterer asymmetry a directed transport is clearly…

统计力学 · 物理学 2007-05-23 G. Cristadoro , D. L. Shepelyansky

It has recently been realized that the first-order moment of the Berry curvature, namely the Berry curvature dipole (BCD) can give rise to non-linear current in a wide variety of time-reversal invariant and non-centrosymmetric materials.…

介观与纳米尺度物理 · 物理学 2021-05-31 Sai Satyam Samal , S. Nandy , Kush Saha

This Letter uncovers five distinct charge transport modes and their transitions in dual-energy electron beam diodes. We via first-principle particle-in-cell (PIC) simulations establish that the specific mode (e.g., space charge…

等离子体物理 · 物理学 2026-05-21 Chubin Lin , Jiandong Chen , Huihui Wang , Yangyang Fu

We theoretically analyze the non-linear anomalous Nernst effect as the second-order response of temperature gradient by using the semiclassical framework of electron dynamics. We find that a non-linear current can be generated transverse to…

介观与纳米尺度物理 · 物理学 2019-05-29 Xiao-Qin Yu , Zhen-Gang Zhu , Jhih-Shih You , Tony Low , Gang Su

We have studied the current through a carbon nanotube quantum dot with one ferromagnetic and one normal-metal lead. For the values of gate voltage at which the normal lead is resonant with the single available non-degenerate energy level on…

介观与纳米尺度物理 · 物理学 2008-08-20 Christopher A. Merchant , Nina Markovic

Electronic transport through nanostructures is greatly affected by the presence of superconducting leads. If the interface between the nanostructure and the superconductors is sufficiently transparent, a dissipationless current…

介观与纳米尺度物理 · 物理学 2009-11-11 Pablo Jarillo-Herrero , Jorden A. van Dam , Leo P. Kouwenhoven

The influence of the charging effects on the transport characteristics of a molecular wire bridging two metallic electrodes in the limit of weak contacts is studied by generalized Breit-Wigner formula. Molecule is modeled as a quantum dot…

化学物理 · 物理学 2009-11-10 Kamil Walczak

We report on experiments conducted on single walled carbon nanotube bundles aligned in chains and connected through a natural contact barrier. The dependence upon the temperature of the transport properties is investigated for samples…

介观与纳米尺度物理 · 物理学 2011-02-24 M. Salvato , M. Cirillo , M. Lucci , S. Orlanducci , I. Ottaviani , M. L. Terranova , F. Toschi

We investigate classical anomalous electrical transport in a driven, resistively and capacitively shunted Josephson junction device. Novel transport phenomena are identified in chaotic regimes when the junction is subjected to both, a time…

超导电性 · 物理学 2008-03-25 M. Kostur , L. Machura , P. Talkner , P. Hanggi , J. Luczka

We introduce a theoretical approach based on scattering theory and total energy methods that treats transport non-linearities, conformational changes and charging effects in molecular wires in a unified way. We apply this approach to…

介观与纳米尺度物理 · 物理学 2009-11-07 Eldon Emberly , George Kirczenow

Many recipes for realizing topological superconductivity rely on broken time-reversal symmetry, which is often attained by applying a substantial external magnetic field. Alternatively, using magnetic materials can offer advantages through…

介观与纳米尺度物理 · 物理学 2025-08-13 Y. Jiang , M. Gupta , C. Riggert , M. Pendharkar , C. Dempsey , J. S. Lee , S. D. Harrington , C. J. Palmstrøm , V. S. Pribiag , S. M. Frolov

The supercurrent diode effect (SDE) describes superconducting systems where the magnitude of the superconducting-to-normal state switching current differs for positive and negative current bias. Despite the ubiquity of such diode effects in…

超导电性 · 物理学 2026-02-11 Joseph J. Cuozzo , François Léonard