Buscar
Mostrando ítems 431-440 de 865
The combined use of screening and quantum defect parameters in the study of ionized atoms
(Elsevier, 2015-03)
The screened hydrogenic model (SHM) is one of the atomic models commonly used in plasma physics, especially in the high energy density range. However, for low-ionization degrees, the radial hydrogenic wavefunctions of the ...
Electron emission in collisions between dressed Alq+ ions with He targets
(IOP Publishing, 2013-04)
Experimental and theoretical results are presented for electron emission in collisions between dressed Alq+ ions and atomic He targets. The experimental data are compared with a four-body CTMC model and two distorted wave ...
Emergence of inflationary perturbations in the CSL model
(Springer, 2016-01)
The inflationary paradigm is the most successful model that explains the observed spectrum of primordial perturbations. However, the precise emergence of such inhomogeneities and the quantum-to-classical transition of the ...
Study of the induced potential produced by ultrashort pulses on metal surfaces
(Optical Society of America, 2009-08)
The relevance of the induced potential for photoelectron emission from metal surfaces resulting from grazingincidence ultrashort laser pulses is studied. To describe this process we introduce a distorted-wave method, which ...
Complex frequencies and field distributions of localized surface plasmon modes in graphene-coated subwavelength wires
(Pergamon-Elsevier Science Ltd, 2016-04)
In this work we study the modal characteristics of localized surface plasmons in graphene-coated, circular cross-section wires. Localized surface plasmons are represented in terms of cylindrical multipole partial waves ...
Single electron ionization of multishell atoms: dynamic screening and post-prior discrepancies in the CDW-EIS model
(IOP Publishing, 2013-06)
A complete formulation of the post-version of the continuum distorted wave-eikonal initial state (CDW-EIS) model is used to investigate single ionization of multishell atoms by fast bare proton beams. The influence of the ...
First-principle calculations of optical properties of wurtzite AlN and GaN
(2001)
The imaginary part of the dielectric function of wurtzite AlN and GaN has been calculated in the long wavelength limit, using two different first-principle electronic structure methods. The first method is a full-potential ...
Intra- and intercycle interference of electron emission in laser assisted XUV atomic ionization
(American Physical Society, 2016-11-07)
We study the ionization of atomic hydrogen in the direction of polarization due to a linearly polarized XUV pulse in the presence of a strong IR laser. We describe the photoelectron spectra as an interference problem in ...
Nonlinear delayed feedback model for incompressible open cavity flow
(American Physical Society, 2020-02)
The dynamics of an oscillating shear layer when confined is enriched by retarded actions whose physical modeling is not trivial. We present a nonlinear delayed saturation feedback model, which allows us to correctly reproduce ...
Electron excitation after plasmon decay in proton-aluminum collisions
(American Physical Society, 2003-12)
When a projectile travels inside a metal, it interacts with the electron gas, producing both binary and collective excitations ~plasmons!. Within the nearly-free-electron-gas scheme, Ro¨sler and co-workers showed that ...