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A nanodevice consisting of a conductive cylinder in an axial magnetic field with one-dimensional wires attached to its lateral surface is considered. An explicit form for transmission and reflection coefficients of the system as a function…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Margulis , M. A. Pyataev

We investigate sequential tunneling transport through a semiconductor double quantum dot structure by combining a simple microscopic quantum confinement model with a Mott-Hubbard type correlation model. We calculate nonperturbatively the…

介观与纳米尺度物理 · 物理学 2009-10-28 R. Kotlyar , S. Das Sarma

In this paper, we present a neural path guiding method to aid with Monte Carlo (MC) integration in rendering. Existing neural methods utilize distribution representations that are either fast or expressive, but not both. We propose a…

图形学 · 计算机科学 2025-06-06 Pedro Figueiredo , Qihao He , Nima Khademi Kalantari

Three-dimensional particle tracking velocimetry (3D-PTV) technique is widely used to acquire the complicated trajectories of particles and flow fields. It is known that the accuracy of 3D-PTV depends on the mapping function to reconstruct…

流体动力学 · 物理学 2020-02-04 Yeonghyeon Gim , Dong Kyu Jang , Dong Kee Sohn , Hyoungsoo Kim , Han Seo Ko

The transportation problem in the plane - how to move a set of objects from one set of points to another set of points in the cheapest way - is a very old problem going back several hundreds of years. In recent years the solution of the…

最优化与控制 · 数学 2016-06-03 Thomas Kaijser

We present a model of quantum teleportation protocol based on a double quantum dot array. The unknown qubit is encoded using a pair of quantum dots, coupled by tunneling, with one excess electron. It is shown how to create maximally…

量子物理 · 物理学 2007-06-28 F. de Pasquale , G. Giorgi , S. Paganelli

We have measured the Kondo effect in a quantum ring connected to three terminals. In this configuration non-linear transport measurements allow to check which lead contributes to the Kondo density of states (DOS) and which does not. When…

介观与纳米尺度物理 · 物理学 2009-11-11 R. Leturcq , L. Schmid , K. Ensslin , Y. Meir , D. C. Driscoll , A. C. Gossard

We study quantum percolation which is described by a tight-binding Hamiltonian containing only off-diagonal hopping terms that are generally in quenched binary disorder (zero or one). In such a system, transmission of a quantum particle is…

无序系统与神经网络 · 物理学 2007-09-20 Md Fhokrul Islam , Hisao Nakanishi

We propose a simple, intuitive alternative method of deriving the rule for connecting asymptotic wave function amplitudes to scattering probabilities. This is illustrated using the standard example of a 1-D particle reflecting or…

量子物理 · 物理学 2009-10-09 Travis Norsen

We consider light propagation through a twisted nematic liquid crystal. At first, an expression for light transmission is obtained using a rather intuitive approach. Secondly, an accurate solution for light transmission based on Maxwell's…

光学 · 物理学 2017-05-09 Nadina Gheorghiu , George Y. Panasyuk

The transport of independent active Brownian particles within a two-dimensional narrow channel, modeled as an open-wedge, is studied both numerically and theoretically. We show that the active force tends to localize the particles near the…

统计力学 · 物理学 2019-05-01 Lorenzo Caprini , Fabio Cecconi , Umberto Marini Bettolo Marconi

We consider two qubit teleportation via quantum channel affected by amplitude damping noise. Addressing the same problem, X. Hu, Y. Gu, Q. Gong and G. Guo [Phys. Rev. A 81, 054302, (2010)] recently showed that in presence of noise,…

量子物理 · 物理学 2017-05-25 Hop Nguyen Van , Anh Le Hoang

Transmission of hydrogen detonation wave (DW) in an inert particle curtain is simulated using the Eulerian-Lagrangian approach with gas-particle two-way coupling. A detailed chemical mechanism is used for hydrogen detonative combustion and…

流体动力学 · 物理学 2022-10-11 Yong Xu , Pikai Zhang , Qingyang Meng , Shangpeng Li , Huangwei Zhang

Multiple-input multiple-output (MIMO) systems play an essential role in direction-of-arrival (DOA) estimation. A large number of antennas used in a MIMO system imposes a huge complexity burden on the popular DOA estimation algorithms, such…

信号处理 · 电气工程与系统科学 2023-03-16 Md Imrul Hasan , Mohammad Saquib

Recent experiments have demonstrated that highly charged ions can be guided through insulating nanocapillaries along the direction of the capillary axis for a surprisingly wide range of injection angles. Even more surprisingly, the…

原子物理 · 物理学 2009-11-11 K. Schiessl , W. Palfinger , K. Tokesi , H. Nowotny , C. Lemell , J. Burgdorfer

We study electronic transport through a strongly interacting quantum dot by using the finite temperature extension of Wilson's numerical renormalization group (NRG) method. This allows the linear conductance to be calculated at all…

强关联电子 · 物理学 2007-05-23 T. A. Costi

We show that an Anderson Hamiltonian describing a quantum dot connected to multiple leads is integrable. A general expression for the non-linear conductance is obtained by combining the Bethe ansatz exact solution with Landauer-B\"uttiker…

介观与纳米尺度物理 · 物理学 2009-11-10 Sam Young Cho , Huan-Qiang Zhou , Ross H. McKenzie

We give the first example of faster transport with a quantum walk on an inherently directed graph, on the directed line with a variable number of self-loops at each vertex. These self-loops can be thought of as adding a number of small…

量子物理 · 物理学 2009-02-24 Stephan Hoyer , David A. Meyer

Diffuse optical tomography (DOT) is an imaging modality which uses near-infrared light. Although iterative numerical schemes are commonly used for its inverse problem, correct solutions are not obtained unless good initial guesses are…

数值分析 · 数学 2021-06-07 Yu Jiang , Manabu Machida , Norikazu Todoroki

The one-dimensional effective Hamiltonian for a planar curvilinear quantum wire with arbitrary shape is proposed in the presence of the Rashba spin-orbit interaction. Single electron propagation through a device of two straight lines…

介观与纳米尺度物理 · 物理学 2015-03-13 Erhu Zhang , Shengli Zhang , Qi Wang