Self-interaction of charged particles in the gravitational field

1979 ◽  
Vol 20 (2) ◽  
pp. 373-376 ◽  
Author(s):  
A. Vilenkin
Keyword(s):  
Gravitational Field ◽  
Charged Particles

The Nordström theory

2018 ◽  
Author(s):  
Nathalie Deruelle ◽  
Jean-Philippe Uzan
Keyword(s):  
Gravitational Field ◽  
Scalar Field ◽  
Equivalence Principle ◽  
Charged Particles ◽  
Inertial Mass ◽  
Massless Scalar ◽  
Weak Equivalence ◽  
Massless Scalar Field ◽  
Particle Charge ◽  
Weak Equivalence Principle

This chapter turns to the description of the interaction of a scalar field with particles which ‘feel’—that is, ‘charged’ particles. If the field is massless, and therefore long-range, and if the particle charge corresponds to its inertial mass, we have what is known as Nordström theory, a coherent theory of gravity which, however, disagrees with experiment. Nordström theory describes gravity by means of a massless scalar field φ‎. According to the ‘weak equivalence principle’, gravitational masses are equal to inertial masses, m = mg. When velocities are small, the gravitational field created is also weak.

scholarly journals Cerenkov radiation emitted by charged particles in a gravitational field

1999 ◽  
Vol 16 (1) ◽  
pp. 291-298 ◽  
Author(s):  
Anshu Gupta ◽  
Subhendra Mohanty ◽  
Manoj K Sama
Keyword(s):  
Gravitational Field ◽  
Charged Particles ◽  
Cerenkov Radiation

scholarly journals Radiation from charged particles due to explicit symmetry breaking in a gravitational field

2018 ◽  
Vol 15 (07) ◽  
pp. 1850122 ◽  
Author(s):  
Fabrizio Tamburini ◽  
Mariafelicia De Laurentis ◽  
Ignazio Licata
Keyword(s):  
Gravitational Field ◽  
Charged Particle ◽  
Symmetry Breaking ◽  
Electric Field ◽  
Spatial Configuration ◽  
Charged Particles ◽  
Classical Electrodynamics ◽  
External Observer ◽  
Time Symmetry ◽  
Free Falling

The paradox of a free falling radiating charged particle in a gravitational field is a well-known fascinating conceptual challenge that involves classical electrodynamics and general relativity (GR). We discuss this paradox considering the emission of radiation as a consequence of an explicit space/time symmetry breaking involving the electric field within the trajectory of the particle seen from an external observer. This occurs in certain particular cases when the relative motion of the charged particle does not follow a geodesic of the motion dictated by the explicit Lagrangian formulation of the problem and thus from the metric of spacetime. The problem is equivalent to the breaking of symmetry within the spatial configuration of a radiating system like an antenna: when the current is not conserved at a certain instant of time within a closed region, then emission of radiation occurs [D. Sinha and G. A. J. Amaratunga, Phys. Rev. Lett. 114(7) (2015) 147701]. Radiation from a system of charges is possible only when there is explicit breaking of symmetry in the electric field in space and time.

GRAVITY GENERATION OF ELECTROMAGNETIC RADIATION AND THE LUMINOSITY OF QUASARS

1998 ◽  
Vol 13 (10) ◽  
pp. 819-822 ◽  
Author(s):  
DAVID W. KRAFT ◽  
LLOYD MOTZ
Keyword(s):  
Gravitational Field ◽  
Electromagnetic Radiation ◽  
Radiation Field ◽  
Spectral Distribution ◽  
Charged Particles ◽  
Radiant Energy ◽  
Principle Of Equivalence ◽  
A Charge ◽  
Gravitational Mechanism ◽  
Schwarzschild Radius

A mechanism is proposed for the emission of radiation by charged particles in the gravitational field of a quasar whereby the gravitational field is coupled directly to the radiation field of the charge via the principle of equivalence. A generalized Larmor formula for the radiation emitted by a charge at rest in a gravitational field can account for the total radiant energy and spectral distribution emitted by quasars. This gravitational mechanism for the emission of electromagnetic radiation becomes more important than any other mechanism when the radius of the quasar is near its Schwarzschild radius.

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