中文
相关论文

相关论文: Efficient quantum transport in disordered interact…

200 篇论文

We study coherent quantum transport through a superconducting film connected to normal-metal electrodes. Simple expressions for the differential conductance and the local density of states are obtained in the clean limit and for transparent…

超导电性 · 物理学 2009-11-07 M. Bozovic , Z. Pajovic , Z. Radovic

Quantum transport in three-dimensional massless Dirac electron system with long-range Gaussian impurities is studied theoretically using a self-consistent Born approximation (SCBA). We find that the conductivity significantly changes the…

无序系统与神经网络 · 物理学 2014-02-25 Yuya Ominato , Mikito Koshino

Electronic transport through chaotic quantum dots exhibits universal, system independent, properties, consistent with random matrix theory. The quantum transport can also be rooted, via the semiclassical approximation, in sums over the…

混沌动力学 · 物理学 2013-03-06 Gregory Berkolaiko , Jack Kuipers

Quenched disorder in graphene is characterized by 5 constants and experiences the logarithmic renormalization even from the spatial scales smaller than the Fermi wavelength. We derive and solve renormalization group equations (RGEs)…

无序系统与神经网络 · 物理学 2009-11-11 I. L. Aleiner , K. B. Efetov

We introduce a numerical tensor-network method to compute the statistics of the charge transferred across an interface partitioning an interacting one-dimensional many-body lattice system with $U(1)$ symmetry. Our approach is based on a…

量子物理 · 物理学 2026-04-01 Hari Kumar Yadalam , Mark T. Mitchison

By combining quantum simulations of electron transport and scanning-gate microscopy, we have shown that the current transmitted through a semiconductor two-path rectangular network in the ballistic and coherent regimes of transport can be…

介观与纳米尺度物理 · 物理学 2013-12-09 S. Huant , S. Baltazar , P. Liu , H. Sellier , B. Hackens , F. Martins , V. Bayot , X. Wallart , L. Desplanque , M. G. Pala

Electron correlation and quantum interference are pivotal in mesoscopic transport. We theoretically study the nonequilibrium transport dynamics of a triangular triple quantum dot (TTQD) molecule connected to fermionic reservoirs using the…

介观与纳米尺度物理 · 物理学 2026-03-13 Shuo Dong , Junqing Li , Jianhua Wei

We investigate transport of spinless fermions through a single site dot junction of M one-dimensional quantum wires. The semi-infinite wires are described by a tight-binding model. Each wire consists of two parts: the non-interacting leads…

强关联电子 · 物理学 2009-11-11 X. Barnabe-Theriault , A. Sedeki , V. Meden , K. Schoenhammer

We consider the problem of electronic quantum transport through ballistic mesoscopic systems with chaotic dynamics, connected to a three-terminal architecture in which one of the terminals has a tunnel barrier. Using a semiclassical…

介观与纳米尺度物理 · 物理学 2022-08-18 Lucas H. Oliveira , Anderson L. R. Barbosa , Marcel Novaes

We derive a general expression for the electron nonequilibrium (NE) distribution function in the context of steady state quantum transport through a two-terminal nanodevice with interaction. The central idea for the use of NE distributions…

介观与纳米尺度物理 · 物理学 2014-02-26 H. Ness

Recent theoretical studies show that decoherence process can enhance transport efficiency in quantum systems. This effect is known as environment-assisted quantum transport (ENAQT). The role of ENAQT in optimal quantum transport is well…

量子物理 · 物理学 2015-06-19 A. Shabani , M. Mohseni , H. Rabitz. , S. Lloyd

We investigate the electronic transport behavior of Fano-Anderson (FA) systems, consisting of a one-dimensional finite backbone chain and an attached side-group of varying length. The tight-binding model within the non-equilibrium Green's…

介观与纳米尺度物理 · 物理学 2025-01-08 Koushik R. Das , Sudipta Dutta

This paper studies the maximization of the weighted sum energy efficiency (WSEE). We derive a first-order optimal algorithm applicable to a wide class of communication scenarios exhibiting very fast convergence. We also discuss how to…

信息论 · 计算机科学 2018-12-19 Bho Matthiesen , Yang Yang , Eduard A. Jorswieck

In this review, we provide an account of the recent progress in understanding electronic transport in disordered graphene systems. Starting from a theoretical description that emphasizes the role played by band structure properties and…

介观与纳米尺度物理 · 物理学 2015-05-19 Eduardo R. Mucciolo , Caio H. Lewenkopf

We consider an inhomogeneous strongly correlated system where external disorder divides it into mesoscopic cells.Strong inter-particle repulsion suppresses the quantum tunneling between cells and open a wide temperature range for incoherent…

强关联电子 · 物理学 2007-05-23 Darwin Chang , Dung-Hai Lee

Recent experiments have demonstrated the possibility of inducing superconducting pairing into counterpropagating fractional quantum Hall edge modes. This paves the way for the realization of localized parafermionic modes, non-Abelian anyons…

介观与纳米尺度物理 · 物理学 2022-07-28 Ida E. Nielsen , Karsten Flensberg , Reinhold Egger , Michele Burrello

Since any realistic electronic device has some degree of disorder, predicting disorder effects in quantum transport is a critical problem. Here we report the theory of nonequilibrium coherent potential approximation (NECPA) for analyzing…

介观与纳米尺度物理 · 物理学 2015-06-15 Yu Zhu , Lei Liu , Hong Guo

An appropriately parameterized compact analytical equation (APAE) is suggested to account for charge carrier mobility in organic disordered semiconductors (ODSs). This equation correctly reproduces the effects of temperature $T$, carrier…

软凝聚态物质 · 物理学 2023-11-10 S. D. Baranovskii , A. V. Nenashev , D. Hertel , K. Meerholz , F. Gebhard

The influence of substitutional disorder on the transport properties of heavy-fermion systems is investigated. We extend the dynamical mean-field theory treatment of the periodic Anderson model (PAM) to a coherent-potential approximation…

强关联电子 · 物理学 2008-03-25 Claas Grenzebach , Frithjof B. Anders , Gerd Czycholl , Thomas Pruschke

The transient processes of electron transport in nano-scale devices exhibit special phenomena that exist only in the transient regime. Besides how fast the steady states are approached, one interesting aspect of transient transport arises…

介观与纳米尺度物理 · 物理学 2016-04-01 Matisse Wei-Yuan Tu , Amnon Aharony , Ora Entin-Wohlman , Avraham Schiller , Wei-Min Zhang