scholarly journals Quantum-Mechanically Allowed Form of Force in General Relativistic Particle Motion

1995 ◽  
Vol 93 (4) ◽  
pp. 823-829
Author(s):  
K. Fujii ◽  
H. Miyazaki
Keyword(s):  
Particle Motion ◽  
Relativistic Particle ◽  
General Relativistic

scholarly journals GEOMETRIC STRUCTURES OF THE CLASSICAL GENERAL RELATIVISTIC PHASE SPACE

2008 ◽  
Vol 05 (05) ◽  
pp. 699-754 ◽  
Author(s):  
JOSEF JANYŠKA ◽  
MARCO MODUGNO
Keyword(s):  
Electromagnetic Field ◽  
Phase Space ◽  
Relativistic Particle ◽  
Jet Space ◽  
Geometric Structures ◽  
Geometric Properties ◽  
Geometric Conditions ◽  
General Relativistic ◽  
Relativistic Phase

This paper is concerned with basic geometric properties of the phase space of a classical general relativistic particle, regarded as the 1st jet space of motions, i.e. as the 1st jet space of timelike 1-dimensional submanifolds of spacetime. This setting allows us to skip constraints. Our main goal is to determine the geometric conditions by which the Lorentz metric and a connection of the phase space yield contact and Jacobi structures. In particular, we specialize these conditions to the cases when the connection of the phase space is generated by the metric and an additional tensor. Indeed, the case generated by the metric and the electromagnetic field is included, as well.

scholarly journals Gravitational Interaction of Cosmic String with Spinless Particle

Universe ◽  
2020 ◽  
Vol 6 (10) ◽  
pp. 184
Author(s):  
Pavel Spirin
Keyword(s):  
Cosmic String ◽  
Particle Motion ◽  
Relativistic Particle ◽  
Gravitational Interaction ◽  
Spinless Particle ◽  
Linearized Theory ◽  
Theory Framework

We consider the gravitational interaction of spinless relativistic particle and infinitely thin cosmic string within the classical linearized-theory framework. We compute the particle’s motion in the transverse (to the unperturbed string) plane. The reciprocal action of the particle on the cosmic string is also investigated. We derive the retarded solution which includes the longitudinal (with respect to the unperturbed-particle motion) and totally-transverse string perturbations.

Relativistic Particle Motion

2012 ◽  
pp. 169-175
Author(s):  
Alexander Ollongren
Keyword(s):  
Particle Motion ◽  
Relativistic Particle

A Study on Polymer Particle Flow in a Disk Zone of a Screw-Disk Extruder

2014 ◽  
Vol 35 (1) ◽  
pp. 121-135 ◽  
Author(s):  
Tomasz Rydzkowski ◽  
Iwona Michalska-Pożoga
Keyword(s):  
Mechanical Properties ◽  
Computer Simulations ◽  
Particle Motion ◽  
Polymer Melt ◽  
Experimental Tests ◽  
Polymer Particle ◽  
Particle Flow ◽  
Material Particle ◽  
Motion Trajectories ◽  
Stretching Effect

Abstract The paper presents the summary of research on polymer melt particle motion trajectories in a disc zone of a screw-disk extruder. We analysed two models of its structure, different in levels of taken simplifications. The analysis includes computer simulations of material particle flow and results of experimental tests to determine the properties of the resultant extrudate. Analysis of the results shows that the motion of melt in the disk zone of a screw-disk extruder is a superposition of pressure and dragged streams. The observed trajectories of polymer particles and relations of mechanical properties and elongation of the molecular chain proved the presence of a stretching effect on polymer molecular chains.

ANALYSIS OF PARTICLE MOTION IN FRICTION SEPARATOR

2018 ◽  
Vol 4 ◽  
pp. 197-203
Author(s):  
V.Ya. Potapov ◽  
◽  
V.N. Makarov ◽  
V.V. Potapov ◽  
N.V. Makarov ◽  
...  
Keyword(s):  
Particle Motion
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