Results 41 to 50 of about 1,958,305 (308)

Simple applications of Noether's first theorem in quantum mechanics and electromagnetism [PDF]

open access: yes, 2003
Internal global symmetries exist for the free non-relativistic Schr\"{o}dinger particle, whose associated Noether charges--the space integrals of the wavefunction and the wavefunction multiplied by the spatial coordinate--are exhibited.
Brown Harvey R.   +2 more
core   +2 more sources

Dual electromagnetism: helicity, spin, momentum and angular momentum

open access: yesNew Journal of Physics, 2013
The dual symmetry between electric and magnetic fields is an important intrinsic property of Maxwell equations in free space. This symmetry underlies the conservation of optical helicity and, as we show here, is closely related to the separation of spin ...
Konstantin Y Bliokh   +2 more
doaj   +1 more source

Electromagnetic Architectures: Structures, Properties, Functions and Their Intrinsic Relationships in Subwavelength Optics and Electromagnetics

open access: yesAdvanced Photonics Research, 2021
In recent years, with the development of photonic crystals, metamaterials, metasurfaces, and other related disciplines, the relationship between the structures and functionalities of artificial optical/electromagnetic materials and devices has become a ...
Xiangang Luo   +4 more
doaj   +1 more source

An attempt to geometrize electromagnetism

open access: yesOpen Physics, 2018
This study investigates the curved worldline of a charged particle accelerated by an electromagnetic field in flat spacetime. A new metric, which dependes on the charge-to-mass ratio and electromagnetic potential, is proposed to describe the curve ...
Huang XiuLin, Xu Yan, Liu ChengZhi
doaj   +1 more source

Physics of Classical Electromagnetism

open access: yes, 2007
The classical electromagnetism described by the Maxwell equations constitutes a fundamental law in contemporary physics. With the advent of sophisticated new materials, the principles are still active in various applied areas in todays advanced ...
M. Fujimoto
semanticscholar   +1 more source

The role of the Riemann–Silberstein vector in classical and quantum theories of electromagnetism [PDF]

open access: yes, 2013
The full text of this article is available in the PDF provided.
I. Bialynicki-Birula   +1 more
semanticscholar   +2 more sources

Non-Commutative Worlds and Classical Constraints

open access: yesEntropy, 2018
This paper reviews results about discrete physics and non-commutative worlds and explores further the structure and consequences of constraints linking classical calculus and discrete calculus formulated via commutators.
Louis H. Kauffman
doaj   +1 more source

Kac-Moody symmetry in the light front of gauge theories

open access: yesJournal of High Energy Physics, 2023
We discuss the emergence of a new symmetry generator in a Hamiltonian realisation of four-dimensional gauge theories in the flat space foliated by retarded (advanced) time.
Hernán A. González   +2 more
doaj   +1 more source

Conservation laws from asymptotic symmetry and subleading charges in QED

open access: yesJournal of High Energy Physics, 2018
We present several results on memory effects, asymptotic symmetry and soft theorems in massive QED. We first clarify in what sense the memory effects are interpreted as the charge conservation of the large gauge transformations, and derive the leading ...
Hayato Hirai, Sotaro Sugishita
doaj   +1 more source

Gauss's law, infinite homogenous charge distributions and Helmholtz theorem

open access: yesRevista Brasileira de Ensino de Física
We rediscuss the validity of Gauss's law in the case of homogenous discrete and continuous charge distributions fulfilling all space.
A.C. Tort
doaj   +1 more source

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