Results 21 to 30 of about 985,445 (141)

Relativistically expanding cylindrical electromagnetic fields

, 2009
We study relativistically expanding electromagnetic fields of cylindrical geometry. The fields emerge from the side surface of a cylinder and are invariant under translations parallel to the axis of the cylinder.
Aly, Contopoulos, Fabian, Fendt, Goodwin, Gourgouliatos, Gourgouliatos, Hurley, K. N. Gourgouliatos, Kalapotharakos, Komissarov, LeBlanc, Lovelace, Lovelace, Low, Lynden-Bell, Lynden-Bell, Lyutikov, McKinney, Meliani, Palmer, Prendergast, Priest, Tsinganos, Uzdensky, Uzdensky, Vlahakis, Vlahakis, Wolfson   +28 more
core   +1 more source

What is the velocity of the electromagnetic field? [PDF]

J. Nonlinear Math. Phys. 5 (1998), no. 2, 159-161, 1998
A new definition for the electromagnetic field velocity is proposed. The velocity depends on the physical fields.
arxiv   +1 more source

Gauge Invariant Fractional Electromagnetic Fields

, 2011
Fractional derivatives and integrations of non-integers orders was introduced more than three centuries ago but only recently gained more attention due to its application on nonlocal phenomenas.
Agrawal, Agrawal, Baleanu, Baleanu, Bauer, Belleguie, Brandt, Caputo, Caputo, Cresson, Cresson, Dreisigmeyer, Engheta, Genchev, Goldfain, Herrmann, Iomin, Ketov, Kilbas, Kusnezov, Laskin, Laskin, Lim, Magin, Mashhoon, Matheus Jatkoske Lazo, Metzler, Metzler, Munkhammar, Muslih, Naber, Naqvi, Oldham, Podlubny, Raspini, Riewe, Tarasov, Tarasov, West, Zhang, Závada   +40 more
core   +1 more source

Fractional Integro-Differential Equations for Electromagnetic Waves in Dielectric Media

, 2011
We prove that the electromagnetic fields in dielectric media whose susceptibility follows a fractional power-law dependence in a wide frequency range can be described by differential equations with time derivatives of noninteger order.
A. A. Kilbas, A. A. Stanislavsky, A. Carpinteri, A. K. Jonscher, A. K. Jonscher, A. K. Jonscher, G. M. Zaslavsky, P. Debye, R. R. Nigmatullin, R. R. Nigmatullin, R. R. Nigmatullin, S. G. Samko, V. E. Tarasov, V. E. Tarasov, V. V. Novikov, Y. Yilmaz   +15 more
core   +1 more source

Electromagnetic signatures of far-field gravitational radiation in the 1+3 approach [PDF]

Class. Quantum Grav. 32, 015011 (2015), 2014
Gravitational waves from astrophysical sources can interact with background electromagnetic fields, giving rise to distinctive and potentially detectable electromagnetic signatures. In this paper, we study such interactions for far-field gravitational radiation using the 1+3 approach to relativity.
arxiv   +1 more source

Understanding light quanta: First quantization of the free electromagnetic field

, 2004
The quantization of the electromagnetic field in vacuum is presented without reference to lagrangean quantum field theory. The equal time commutators of the fields are calculated from basic principles.
A C de la Torre, Ballentine L E, Bohr N, Greenstein G, Jordan P, Landau L D, Milonni P W, Rosenfeld L, Schiff L I, Scully M O, Speziali P, Stanley R Q, Weinberg S, Wheeler J A, Wheeler J A, Ynduráin F J   +15 more
core   +1 more source

Electrodynamics in accelerated frames revisited

, 2010
Maxwell's equations are formulated in arbitrary moving frames by means of tetrad fields, which are interpreted as reference frames adapted to observers in space-time.
Anderson, Boulware, de Almeida, Eriksen, Kovetz, Maluf, Maluf, Mashhoon, Mashhoon, Mashhoon   +9 more
core   +1 more source

Tetrads in Geometrodynamics

, 2004
A new tetrad is introduced within the framework of geometrodynamics for non-null electromagnetic fields. This tetrad diagonalizes the electromagnetic stress-energy tensor and allows for maximum simplification of the expression of the electromagnetic ...
Alcides Garat, Carmeli M., Stephani H., Weinberg S.   +3 more
core   +1 more source

Achievable Transverse Cylindrical Electromagnetic Mode [PDF]

Progress In Electromagnetics Research Letters, Vol. 24, 59-68, 2011, 2011
The system of Maxwell equations with an initial condition in a vacuum is solved in a cylindrical coordinate system. It derives the cylindrical transverse electromagnetic wave mode in which the electric field and magnetic field are not in phase. Such electromagnetic wave can generate and exist in actual application, and there is no violation of the law ...
arxiv  

Presentation of the electromagnetic field in introductory physics textbooks and consequences for its teaching [PDF]

arXiv, 2023
Textbooks play a fundamental role in teaching and learning in school science classrooms. In this paper we investigate the presentation of the nature of the electromagnetic field in a dozen of the world's most popular introductory university physics textbooks.
arxiv