Is General Relativity a simplified theory?


Autoria(s): Rivas Pérez, Martín
Data(s)

05/02/2014

05/02/2014

2013

Resumo

IARD 8th Biennial Conference on Classical and Quantum Relativistic Dynamics of Particles and Fields - Galileo Galilei Inst Theoret Phys (GGI), Florence, ITALY - MAY 29-JUN 01, 2012. Edited by:Horowitz, LP

Gravity is understood as a geometrization of spacetime. But spacetime is also the manifold of the boundary values of the spinless point particle in a variational approach. Since all known matter, baryons, leptons and gauge bosons are spinning objects, it means that the manifold, which we call the kinematical space, where we play the game of the variational formalism of an elementary particle is greater than spacetime. This manifold for any mechanical system is a Finsler metric space such that the variational formalism can always be interpreted as a geodesic problem on this space. This manifold is just the flat Minkowski space for the free spinless particle. Any interaction modifies its flat Finsler metric as gravitation does. The same thing happens for the spinning objects but now the Finsler metric space has more dimensions and its metric is modified by any interaction, so that to reduce gravity to the modification only of the spacetime metric is to make a simpler theory, the gravitational theory of spinless matter. Even the usual assumption that the modification of the metric only involves dependence on the metric coefficients of the spacetime variables is also a restriction because in general these coefficients are dependent on the velocities. In the spirit of unification of all forces, gravity cannot produce, in principle, a different and simpler geometrization than any other interaction.

Identificador

Journal of Physics. Conference Series 437 (2013) // 012008

1742-6588

http://hdl.handle.net/10810/11362

10.1088/1742-6596/437/1/012008

Idioma(s)

eng

Publicador

IOP Publishing

Relação

http://iopscience.iop.org/1742-6596/437/1/012008/

Direitos

(c)2013 Rivas, M. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

info:eu-repo/semantics/openAccess

Palavras-Chave #gravitation #cosmology
Tipo

info:eu-repo/semantics/conferenceObject