Electromagnetic field behaviour at edges in general bianisotropic media

1996 ◽  
Vol 143 (6) ◽  
pp. 527 ◽  
Author(s):  
B. Jakoby
Keyword(s):  
Electromagnetic Field ◽  
Field Behaviour

On Meixner's edge condition for dielectric wedges

1977 ◽  
Vol 55 (22) ◽  
pp. 1970-1971 ◽  
Author(s):  
R. A. Hurd
Keyword(s):  
Electromagnetic Field ◽  
Electric Fields ◽  
Wedge Angle ◽  
Careful Examination ◽  
Edge Condition ◽  
First Case ◽  
Field Behaviour

It is pointed out that there is a difference between the electromagnetic field behaviour at the edge of a highly conducting wedge of angle greater than π (as predicted by Meixner) and the known field behaviour for a perfectly conducting wedge of the same angle. In particular, the perpendicular electric fields are infinite in the first case and finite in the latter. A careful examination of the theory suggests that Meixner's effect is real, but is only detectable in practical conductors if the wedge angle is very accurately machined.

Comparison of high- and low-frequency electromagnetic field analysis

1993 ◽  
Vol 3 (3) ◽  
pp. 363-371 ◽  
Author(s):  
A. Konrad ◽  
I. A. Tsukerman
Keyword(s):  
Electromagnetic Field ◽  
Low Frequency ◽  
Field Analysis

Energy, Information, and Superluminal Speed in Quantum Electrodynamics

2020 ◽  
pp. 27-33
Author(s):  
Boris A. Veklenko
Keyword(s):  
Electromagnetic Field ◽  
Perturbation Theory ◽  
Quantum Electrodynamics ◽  
Excited Atom ◽  
Standard Quantum ◽  
Energy Information

Without using the perturbation theory, the article demonstrates a possibility of superluminal information-carrying signals in standard quantum electrodynamics using the example of scattering of quantum electromagnetic field by an excited atom.

The Event Universe

2015 ◽  
Author(s):  
Leemon B. McHenry
Keyword(s):  
Electromagnetic Field ◽  
Quantum Mechanics ◽  
Common Sense ◽  
Physical Theory ◽  
Alfred North Whitehead ◽  
Bertrand Russell ◽  
Theory Of Relativity ◽  
The World ◽  
Modern Physics ◽  
Linguistic Methods

What kinds of things are events? Battles, explosions, accidents, crashes, rock concerts would be typical examples of events and these would be reinforced in the way we speak about the world. Events or actions function linguistically as verbs and adverbs. Philosophers following Aristotle have claimed that events are dependent on substances such as physical objects and persons. But with the advances of modern physics, some philosophers and physicists have argued that events are the basic entities of reality and what we perceive as physical bodies are just very long events spread out in space-time. In other words, everything turns out to be events. This view, no doubt, radically revises our ordinary common sense view of reality, but as our event theorists argue common sense is out of touch with advancing science. In The Event Universe: The Revisionary Metaphysics of Alfred North Whitehead, Leemon McHenry argues that Whitehead's metaphysics provides a more adequate basis for achieving a unification of physical theory than a traditional substance metaphysics. He investigates the influence of Maxwell's electromagnetic field, Einstein's theory of relativity and quantum mechanics on the development of the ontology of events and compares Whitehead’s theory to his contemporaries, C. D. Broad and Bertrand Russell, as well as another key proponent of this theory, W. V. Quine. In this manner, McHenry defends the naturalized and speculative approach to metaphysics as opposed to analytical and linguistic methods that arose in the 20th century.

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