scholarly journals 9.15. Theoretical method for treating force-free black hole magnetosphere in non-stationary and non-axisymmetric state

1998 ◽  
Vol 184 ◽  
pp. 411-412
Author(s):  
T. Uchida
Keyword(s):  
Black Hole ◽  
Electromagnetic Field ◽  
Theoretical Method ◽  
Electromagnetic Structure ◽  
Axisymmetric State ◽  
Free Black ◽  
Free Electromagnetic Field ◽  
Axisymmetric Configuration ◽  
General Method

The force-free approximation is a very useful method in studies of the global electromagnetic structure of the magnetospheres around the relativistic astronomical bodies. However, its application has almost been restricted to the stationary and axisymmetric configuration. In this work, we remove this restriction and construct a general method for treating the force-free electromagnetic field.

scholarly journals WITHOUT A CONFLICT MODEL OF ELECTRON

2019 ◽  
pp. 16-20
Author(s):  
Vasil Tchaban
Keyword(s):  
Elementary Particle ◽  
Black Hole ◽  
Electromagnetic Field ◽  
Charge Density ◽  
Point Charge ◽  
Quark Distribution ◽  
Electromagnetic Mass ◽  
White Hole ◽  
Universal Formula ◽  
Conflict Model

The model of electron is offered with quark distribution of charge density and ”white hole” (on similarity of ”black hole” in gravitation) in a center. Such structure abolishes the crisis of electromagnetic mass, calculated on universal formula and on the impulse of the electromagnetic field. A model in order to please a classic electrodynamics keeps monolithic nature of elementary particle, and in order to please a quantum allows the separate charged zones to interpret as separate quarks. Coming from harmony of spheres of the separate charged zones, a white hole can be interpreted as white (neutral) quark conditionally in addition to three coloured. As after the electric radius re = 1.185246·10−15 m of white hole the laws of electricity do not operate, then the crisis of point charge is removed at the same time too, because of must be: r ≥ re.

Quantisation of the Electromagnetic Field and Spontaneous Photon Emission

2021 ◽  
pp. 4-23
Author(s):  
J. Iliopoulos ◽  
T.N. Tomaras
Keyword(s):  
Electromagnetic Field ◽  
Excited State ◽  
Physical Interpretation ◽  
Gauge Invariance ◽  
Photon Emission ◽  
Perturbation Expansion ◽  
Atomic State ◽  
Abstract Concepts ◽  
Free Electromagnetic Field ◽  
Physical Result

We develop the method of canonical quantisation for the case of the free electromagnetic field. We choose the Coulomb gauge, which has a simpler physical interpretation. We introduce the creation and annihilation operators in this framework. The formalism is applied to the problem of spontaneous emission of radiation from an excited atomic state at first order in the perturbation expansion. This allows us to obtain a concrete physical result, namely the computation of an excited state decay rate, and, at the same time, have a first look at abstract concepts, such as gauge invariance and renormalisation.

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