Bellucco, Alex Carvalho, Anna Maria Pessoa de

Aiming to contribute to the improvement of Physics teaching, which goes through a crisis reflected by very small demand for courses in exact Sciences, we propose an Inquiry-Based Teaching Sequence (IBTS) planned to develop argumentative situations, i.e., essential activities in the learning process. Initially we show the scientific argumentation, t...

Krieger, Joachim Lenzmann, Enno Raphaël, Pierre
Published in
Archive for Rational Mechanics and Analysis

We consider the focusing L2-critical half-wave equation in one space dimension, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$i \partial_t u = D u - |u|^2 u$$\end{doc...

Deng, D. M.
Published in
The European Physical Journal D

The propagation properties of the Airy-Gaussian beams are introduced in a quadratic-index medium analytically and numerically. The linear momentum, the beam width, the beam center of the Airy-Gaussian beam are analyzed. The Airy-Gaussian beam shape and curvature repeats itself at intervals proportional to \hbox{$1/\sqrt{az_{R}}$}1/azR due to the po...

Deng, D. Li, H.
Published in
Applied Physics B

The propagation of the Airy–Gaussian beams is studied in strongly nonlocal nonlinear media analytically and numerically. The linear momentum of the analytical Airy–Gaussian beam solution of the Snyder–Mitchell model is not conservational, which is the reason that results in the disagreement between the analytical Airy–Gaussian beam solution and the...

Huang, Lan-Hsuan Schoen, Richard Wang, Mu-Tao
Published in
Communications in Mathematical Physics

We show that it is possible to perturb arbitrary vacuum asymptotically flat spacetimes to new ones having exactly the same energy and linear momentum, but with center of mass and angular momentum equal to any preassigned values measured with respect to a fixed affine frame at infinity. This is in contrast to the axisymmetric situation where a bound...

Collin, S.
Published in
The European Physical Journal Plus

We decompose the canonical SEM tensor of the electrodynamics, in the presence of sources, into a part corresponding to the Maxwell-Minkowski tensor and into another part that is non-symmetric. From the latter, we derive a linear momentum density and we write the conservation law of the total linear momentum. Then, we derive an angular momentum, usi...

Možina, J. Diaci, J.
Published in
Applied Physics B

The term optodynamics has been introduced to describe a wide range of optically induced dynamic phenomena, which play an important role in laser–material processes as well as in laser-assisted medical applications. In view of laser material processing, a laser beam is not only considered as a tool, but also as a generator of information about the m...

Berezovski, Arkadi Engelbrecht, Jüri Berezovski, Mihhail
Published in
Acta Mechanica

The basic ideas for describing the dispersive wave motion in microstructured solids are discussed in the one-dimensional setting because then the differences between various microstructure models are clearly visible. An overview of models demonstrates a variety of approaches, but the consistent structure of the theory is best considered from the un...

dos Santos, C. da Hora, E.
Published in
The European Physical Journal C

In this paper we study the structure of one dimensional topological solitons in a generalized Abelian-Higgs Chern–Simons model where the kinetic term is non-canonical. We present an example of an analytical self-dual electrically charged soliton solution which has a finite momentum per unit length along its direction. We compared the physical prope...

Zheng-Johansson, J. X.
Published in
Physics of Atomic Nuclei

The internally electrodynamic (IED) particle model was derived based on overall experimental observations, with the IED process itself being built directly on three experimental facts: (a) electric charges present with all material particles, (b) an accelerated charge generates electromagnetic waves according to Maxwell’s equations and Planck energ...