Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2011-12-09
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
34 pages, 2 figures. Chapter written for the book "Aspects of Today's Cosmology", Edited by: Antonio Alfonso-Faus, InTech Publ
Scientific paper
These notes represent a summary of the introductory part of a course on modified gravity delivered at several Spanish Universities (Granada, Valencia, and Valladolid), at the University of Wisconsin-Milwaukee (WI, USA), and at the Karl-Franzens Universitaet (Graz, Austria) during the period 2008-2011. We begin with a discussion of the classical Newtonian framework and how special relativity boosted the interest on new theories of gravity. Then we focus on Nordstrom's scalar theories of gravity and their influence on Einstein's theory of general relativity. We comment on the meaning of the Einstein equivalence principle and its implications for the construction of alternative theories of gravity. We present the cosmic speedup problem and how $f(R)$ theories can be constrained attending to their weak-field behavior. We conclude by showing that Palatini f(R) and f(R,Q) theories can be used to address different aspects of quantum gravity phenomenology and singularity problems.
No associations
LandOfFree
Introduction to Modified Gravity: From the Cosmic Speedup Problem to Quantum Gravity Phenomenology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Introduction to Modified Gravity: From the Cosmic Speedup Problem to Quantum Gravity Phenomenology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Introduction to Modified Gravity: From the Cosmic Speedup Problem to Quantum Gravity Phenomenology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-381067