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- Title
On the geometry and dynamics of relativistic particles in generalized Robertson–Walker spacetimes.
- Authors
Herrera, Jónatan; de la Rosa, Martín; Rubio, Rafael M.
- Abstract
In this work, we consider geometrical models describing spinning particles in the context of generalized Robertson–Walker spacetimes. We study spacelike and timelike trajectories for massive and massless particles governed by two different Lagrangians: one depending on the torsion and the other on the curvature of the trajectory. For both, we are able to relate the curvature and torsion of such trajectories with the curvature of the spatial fiber of the cosmological model. Moreover, several conserved quantities are described as well as their possible relations with physical parameters of the particle.
- Subjects
PARTICLE dynamics; EINSTEIN, Albert, 1879-1955; GEOMETRIC modeling; CONSERVED quantity; GEOMETRY; PARTICLE spin; RELATIVISTIC particles
- Publication
International Journal of Geometric Methods in Modern Physics, 2024, Vol 21, Issue 1, p1
- ISSN
0219-8878
- Publication type
Article
- DOI
10.1142/S0219887824500488