1.

Record Nr.

UNINA9910337876103321

Autore

Kuntz Iberê

Titolo

Gravitational Theories Beyond General Relativity / / by Iberê Kuntz

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2019

ISBN

3-030-21197-5

Edizione

[1st ed. 2019.]

Descrizione fisica

1 online resource (88 pages)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

530.11015153

530.1

Soggetti

Gravitation

Cosmology

Elementary particles (Physics)

Quantum field theory

Classical and Quantum Gravitation, Relativity Theory

Elementary Particles, Quantum Field Theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

Introduction -- Equivalence between dark matter and modified gravity -- Gravitational waves in quantum gravity -- Backreaction of quantum gravitational modes -- Higgs-Starobinsky inflation -- Vacuum stability during inflation -- Conclusions -- Appendix.

Sommario/riassunto

Despite the success of general relativity in explaining classical gravitational phenomena, several problems at the interface between gravitation and high energy physics still remain open. The purpose of this thesis is to explore quantum gravity and its phenomenological consequences for dark matter, gravitational waves and inflation. A new formalism to classify gravitational theories based on their degrees of freedom is introduced and, in light of this classification, it is argued that dark matter is no different from modified gravity. Gravitational waves are shown to be damped due to quantum degrees of freedom. The consequences for gravitational wave events are also discussed. The non-minimal coupling of the Higgs boson to gravity is studied in connection with Starobinsky inflation and its implications for the



vacuum instability problem is analyzed.