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We have studied magneto transport in the single-band, quasi-two-dimensional metals PdCoO2 and PtCoO2, which have extremely long mean free paths. We observer a strong temperature dependence of the Hall resistivity in small applied, fields,…

We have developed a scattering matrix approach to coherent transport through an adiabatically driven conductor based on photon-assisted processes. To describe the energy exchange with the pumping fields we expand the Floquet scattering…

介观与纳米尺度物理 · 物理学 2015-06-25 M. Buttiker , M. Moskalets

We present a numerical study on the light transport properties which are modulated by the disorder strength in quasi-one-dimensional disordered waveguide which consists of periodically arranged scatterers with random dielectric constant.…

光学 · 物理学 2017-03-22 Yuchen Xu , Hao Zhang , Yujun Lin , Heyuan Zhu

In the framework of a two-moment photo-hydrodynamic modelling of radiation transport, we introduce a concept for the determination of effective radiation transport coefficients based on the minimization of the local entropy production rate…

统计力学 · 物理学 2014-11-18 Thomas Christen , Frank Kassubek

We calculate the effect of electron-electron interactions involving vanishing momentum transfer (forward scattering) on the orbital linear magnetic response of disordered metal rings pierced by a magnetic flux phi. Using the bulk value of…

介观与纳米尺度物理 · 物理学 2009-11-10 Long Phi Chau , Peter Kopietz

The mean free path is an essential characteristic length in disordered systems. In microscopic calculations, it is usually approximated by the classical value of the elastic mean free path. It corresponds to the Boltzmann mean free path…

无序系统与神经网络 · 物理学 2009-11-07 S. Correia

This paper presents an analytical analysis of the Doppler spectrum in von Mises-Fisher (vMF) scattering channels. A simple closed-form expression for the Doppler spectrum is derived and used to investigate the impact of the vMF scattering…

信号处理 · 电气工程与系统科学 2025-01-30 Kenan Turbic , Martin Kasparick , Slawomir Stanczak

We carry out numerical calculations of the scattering cross section of tubular semiconductor nanocylinders in the optical range. The scattering is investigated for the transversal incidence of light, i.e., along the diameter of the…

介观与纳米尺度物理 · 物理学 2019-05-08 Miguel Urbaneja Torres , Anna Sitek , Andrei Manolescu

The transport of non-thermal particles across a large-scale magnetic field in the presence of magnetised turbulence has been a long-standing issue in high-energy astrophysics. Of particular interest is the dependence of the parallel and…

高能天体物理现象 · 物理学 2025-10-03 Marco Kuhlen , Vo Hong Minh Phan , Philipp Mertsch

The effects of a correlated linear energy/velocity chirp in the electron beam in the FEL, and how to compensate for its effects by using an appropriate taper (or reverse-taper) of the undulator magnetic field, is well known. The theory, as…

加速器物理 · 物理学 2017-04-26 L. T. Campbell , A. R. Maier

We investigate the possibility of observing a magneto-transverse scattering of photons from alkaline-earth-like atoms as well as alkali-like ions and provide orders of magnitude. The transverse magneto-scattering is physically induced by…

原子物理 · 物理学 2016-10-12 B. A. van Tiggelen , D. Wilkowski

We present an experimental and theoretical study of the angle- and polarization-dependent light extinction in random arrays of polydisperse semiconductor nanowires epitaxially grown on substrates. The specular reflectance is described by…

光学 · 物理学 2013-11-05 Grzegorz Grzela , Djamila Hourlier , Jaime Gómez Rivas

The paper describes the transport of the elastically and diffractively scattered protons in the proton-proton interactions at the LHC for the high beta* runs. A parametrisation of the attered proton transport through the LHC magnetic…

仪器与探测器 · 物理学 2012-09-27 Maciej Trzebinski , Rafal Staszewski , Janusz Chwastowski

We analyze the transport properties of charged particles (ions and electrons) interacting with randomly formed magnetic scatterers (e.g.\ large scale local ``magnetic fluctuations'' or ``coherent magnetic irregularities'' usually present in…

太阳与恒星天体物理 · 物理学 2020-01-08 Nikos Sioulas , Heinz Isliker , Loukas Vlahos , Argyris Koumtzis , Theophilos Pisokas

Previous studies of kinetic transport in the Lorentz gas have been limited to cases where the scatterers are distributed at random (e.g. at the points of a spatial Poisson process) or at the vertices of a Euclidean lattice. In the present…

数学物理 · 物理学 2015-09-07 Jens Marklof , Andreas Strömbergsson

We utilize a geometric argument to determine the effects of boundary scattering on the carrier mean-free path in samples of various cross sections. Analytic expressions for samples with rectangular and circular cross sections are obtained.…

超导电性 · 物理学 2009-10-22 R. Richardson , Franco Nori

We calculate the electron elastic mean free path due to ionized impurity scattering in semiconductor quantum wires, using a scheme in which the screened ionized impurity potential and the electron screening self-consistently determine each…

凝聚态物理 · 物理学 2007-05-23 Ben Yu-Kuang Hu , S. Das Sarma

The presence of resonances modifies the passage of light or of electrons through a disordered medium. We generalize random matrix theory to account for this effect. Using supersymmetry, we calculate analytically the mean density of states,…

无序系统与神经网络 · 物理学 2009-10-31 B. Elattari , V. Kagalovsky , H. A. Weidenmueller

We show that, although the amount of mutual entanglement of photons propagating in free space is fixed, the type of correlations between the photons that determine the entanglement can dramatically change during propagation. We show that…

量子物理 · 物理学 2009-11-13 K. W. Chan , J. P. Torres , J. H. Eberly

Electron transport in thin metallic wires and films is strongly influenced by the quality of their surface. Weak localization and magnetoconductivity are also sensitive to the electron scattering at the edges of the sample. We study weak…

介观与纳米尺度物理 · 物理学 2016-10-26 E. Khalaf , P. M. Ostrovsky