Linear and second-order geometry perturbations on spacetimes with torsion

Linear and second-order geometry perturbations on spacetimes with torsion

In order to study gravitational waves in any realistic astrophysical scenario, one must consider geometry perturbations up to second order. Here, we present a general technique for studying linear and quadratic perturbations on a spacetime with torsion. Besides the standard metric mode, a “torsionon...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2019-04, Vol.79 (4), p.1-7, Article 337
Hauptverfasser: Izaurieta, Fernando, Rodríguez, Eduardo, Valdivia, Omar
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Astronomy
Astrophysics and Cosmology
Elementary Particles
Gravitational waves
Gravity (Force)
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Perturbation
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
Torsion
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Beschreibung
Zusammenfassung:In order to study gravitational waves in any realistic astrophysical scenario, one must consider geometry perturbations up to second order. Here, we present a general technique for studying linear and quadratic perturbations on a spacetime with torsion. Besides the standard metric mode, a “torsionon” perturbation mode appears. This torsional mode will be able to propagate only in a certain kind of theories.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-6852-y