Extensions of F(r) Gravity

Curvature-Matter Couplings and Hybrid Metric-Palatini Theory
Erscheinungsjahr 2019
ISBN: 978-1-108-42874-3
Verlag: Cambridge University Press

Buch, Englisch, Band 1, 473 Seiten, Format (B × H): 179 mm x 254 mm, Gewicht: 994 g

Reihe: Cambridge Monographs on Mathematical Physics

Recent cosmological observations have posed a challenge for traditional theories of gravity: what is the force driving the accelerated expansion of the universe? What if dark energy or dark matter do not exist and what we observe is a modification of the gravitational interaction that dominates the universe at large scales? Various extensions to Einstein's General Theory of Relativity have been proposed, and this book presents a detailed theoretical and phenomenological analysis of several leading, modified theories of gravity. Theories with generalised curvature-matter couplings are first explored, followed by hybrid metric-Palatini gravity. This timely book first discusses key motivations behind the development of these modified gravitational theories, before presenting a detailed overview of their subsequent development, mathematical structure, and cosmological and astrophysical implications. Covering recent developments and with an emphasis on astrophysical and cosmological applications, this is the perfect text for graduate students and researchers.

Autoren/Hrsg.

Harko, Tiberiu

Lobo, Francisco S N

Fachgebiete

• Naturwissenschaften Physik Quantenphysik Relativität, Gravitation
• Naturwissenschaften Physik Physik Allgemein Theoretische Physik, Mathematische Physik, Computerphysik
• Naturwissenschaften Astronomie Kosmologie, Urknalltheorie
• Naturwissenschaften Physik Mechanik Gravitation

Inhaltsverzeichnis

Preface; Part I. Review of General Relativity: 1. Introduction; 2. The mathematical foundations; 3. The gravitational field equations; 4. The solar system tests and astrophysical applications; 5. Cosmology; 6. f(R) gravity; Part II. Generalized Curvature-Matter Couplings in Modified Gravity: 7. Introduction; 8. Gravity theories with linear curvature-matter coupling; 9. f(R;Lm) gravity; 10. f(R; T) gravity; 11. Dark matter as a curvature-matter coupling effect; 12. Thermodynamical interpretation of curvature-matter coupling; 13. Quantum cosmology of f(R; T) gravity; 14. Modified gravity from quantum metric fluctuations; 15. Discussion and conclusion; Part III. Hybrid Metric-Palatini Gravity: 16. Introduction; 17. The general formalism; 18. Cosmological applications; 19. Astrophysical applications; 20. Compact stellar objects; 21. Hybrid gravity traversable wormholes; 22. Conclusions; References; Index.

Über Autor(innen)

Lobo, Francisco S N
Francisco S. N. Lobo is Principal Investigator at the Science Faculty of the Universidade de Lisboa, and leads the Cosmology Group at the Institute of Astrophysics and Space Sciences. His research is focused on gravitational physics, and several of his publications have received extensive news coverage from publications including The New York Times, Scientific American and National Geographic.

Harko, Tiberiu
Tiberiu Harko is Senior Honorary Research Associate in the Department of Mathematics at University College London, visiting Professor in the Department of Physics at the Sun-Yat Sen University in Guangzhou, China, and Associate Professor in the Babes-Bolyai University, Cluj, Romania. His research interests include general relativity and modified theories of gravity, cosmology, astrophysics and applied mathematics.