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Superscattering, i.e., a phenomenon of the scattering cross section from a subwavelength object exceeding the single-channel limit, has important prospects in enhanced sensing/spectroscopy, solar cells, and biomedical imaging.…

The Sudden Approximation (SA) for scattering of atoms from surfaces is generalized to allow for double collision events and scattering from time-dependent quantum liquid surfaces. The resulting new schemes retain the simplicity of the…

材料科学 · 物理学 2015-06-25 Daniel A. Lidar

Jets can become collimated as they propagate through dense environments and understanding such interactions is crucial for linking physical models of the environments to observations. In this work, we use 3D special-relativistic simulations…

高能天体物理现象 · 物理学 2021-10-27 Lorenzo Nativi , Gavin P. Lamb , Stephan Rosswog , Christoffer Lundman , Grzegorz Kowal

The interaction between the strong winds in stellar colliding-wind binary (CWB) systems produces two shock fronts, delimiting the wind collision region (WCR). There, particles are expected to be accelerated mainly via diffusive shock…

高能天体物理现象 · 物理学 2019-01-30 Emanuele Grimaldo , Anita Reimer , Ralf Kissmann , Felix Niederwanger , Klaus Reitberger

Surface plasmon scattering by 1D indentations and protrusions is examined, mainly in the optical regime. The width of the defects is fixed, while its height is varied. Both individual and arrays of defects are considered. Protrusions mainly…

介观与纳米尺度物理 · 物理学 2010-09-22 Giovanni Brucoli , Luis Martín Moreno

While a plane-wave approximation in high-energy physics works well in a majority of practical cases, it becomes inapplicable for scattering of the vortex particles carrying orbital angular momentum, of Airy beams, of the so-called…

量子物理 · 物理学 2018-01-23 Dmitry Karlovets

The blast-wave (BW) spectrum model is interpreted to reveal relativistic motion (collective flow) of the hadron emission system relative to the center-of-momentum (CM) frame in high-energy A-B collisions. In essence, any spectrum deviation…

高能物理 - 唯象学 · 物理学 2022-06-17 Thomas A. Trainor

The replacement of the JET carbon wall (C-wall) by a Be/W ITER-like wall (ILW) has affected the plasma energy confinement. To investigate this, experiments have been performed with both the C-wall and ILW to vary the heating power over a…

The boundaries of waveguides and nanowires have drastic influence on their coherent scattering properties. Designing the boundary profile is thus a promising approach for transmission and band-gap engineering with many applications. By…

介观与纳米尺度物理 · 物理学 2012-12-04 O. Dietz , H. -J. Stöckmann , U. Kuhl , F. M. Izrailev , N. M. Makarov , J. Doppler , F. Libisch , S. Rotter

Under the framework of Vector Meson Dominance model, the value of scattering length can be expressed as a function of the ratio between total cross section $\sigma (W)$ and $R (W)$, where $R(W)$ is the ratio between final momentum $|{\bf…

高能物理 - 唯象学 · 物理学 2022-07-20 Xiao-Yun Wang , Fancong Zeng , Igor I. Strakovsky

In this work, we examine sheath formation in the presence of bias potentials in the current saturation regime for pulsed power fusion experiments. It is important to understand how the particle and heat fluxes at the wall may impact the…

等离子体物理 · 物理学 2023-02-08 Chirag R. Skolar , Kolter Bradshaw , James Juno , Bhuvana Srinivasan

A close inspection of neutron spectra of glass formers in the frequency region above the boson peak does not show the constant eigenvalue density expected for a random dynamical matrix, but a slow decrease towards higher eigenvalues. In…

无序系统与神经网络 · 物理学 2007-05-23 U. Buchenau , A. Wischnewski , M. Ohl , E. Fabiani

To explain the experimental facts that the fusion cross sections of proton-halo nucleus on heavy target nucleus is not enhanced as expected, the shielding supposition has been proposed. Namely, the proton-halo nucleus is polarized with the…

核理论 · 物理学 2020-05-01 Xue-ying He , Qin Dong , Li Ou

This work presents an extensive exploration of scattering and tunneling involving composite objects with intrinsic degrees of freedom. We aim at exact solutions to such scattering problems. Along this path we demonstrate solution to model…

核理论 · 物理学 2011-01-28 Naureen Ahsan , Alexander Volya

Nonlinear effects could play a crucial role in addressing optical nonreciprocal behaviors in scattering media. Such behaviors are, however, typically observed within a single transmission channel and predominantly in media with fixed…

光学 · 物理学 2025-04-07 Xiao Liu , M. Artoni , G. C. La Rocca , Jin-Hui Wu

Beginning with the general Bjorken-Mtingwa solution for intrabeam scattering (IBS) we derive an accurate, greatly simplified model of IBS, valid for high energy beams in normal storage ring lattices. In addition, we show that, under the…

加速器物理 · 物理学 2007-05-23 Karl L. F. Bane

I investigate the elastic electron scattering off nuclei far from the stability line. The effects of the neutron and proton skins and halos on the differential cross sections are explored. Examples are given for the charge distribution in…

核理论 · 物理学 2008-11-26 C. A. Bertulani

The scattering of polarized light incident from one dielectric medium on its two-dimensional randomly rough interface with a second dielectric medium is studied. A reduced Rayleigh equation for the scattering amplitudes is derived for the…

光学 · 物理学 2016-05-17 Øyvind S. Hetland , Alexei A. Maradudin , Tor Nordam , Ingve Simonsen

Physics based emulators offer a fast and reliable replacement for an exact solution of the scattering problem in nuclear physics. Previous work developed a reduced-basis emulator for single-channel elastic scattering using an optical…

The simplest Lorentz-nonreciprocal medium has the constitutive relations (${\bf D} =\epso {\bf E} -{\bf \Gamma}\times {\bf H}$ and ${\bf B} =\muo {\bf H} + {\bf \Gamma}\times{\bf E}$). Scattering by a three-dimensional object composed of…

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