- Nominated as an outstanding PhD thesis by the University of Cambridge, UK
- An exceptionally clear presentation of one of physics' major frontiers Investigates modified gravity from both theoretical and observational perspectives
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- About this book
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This work investigates the theoretical and cosmological implications of modifying Einstein's theory of general relativity. It explores two classes of modifications to gravity: those in which the graviton is given a small mass, and those in which Lorentz invariance is spontaneously broken. It elucidates the nature of cosmological perturbations in theories of massive bimetric gravity, including a potentially deadly instability. Theories of gravity beyond general relativity could explain why the expansion of the Universe is accelerating, obviating the need for a dark energy, and can also affect the evolution of the early Universe. Next, it investigates the nature of spacetime in massive gravity theories that contain two different spacetime metrics. Lastly, the strongest constraints to date are placed on the size of Lorentz-violating effects in the gravity sector during inflation.
- About the authors
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Adam Solomon is a theoretical cosmologist interested in how we can unveil the fundamental laws of physics by looking to the sky. While his research has spanned a variety of cosmological observations and fundamental theories, he has focused especially on the mystery of the accelerating expansion of the Universe, and whether this may be a sign of new gravitational physics beyond Einstein's general relativity.
He is currently a postdoctoral fellow at the Center for Particle Cosmology at the University of Pennsylvania, having obtained his bachelors at Yale University and his doctorate at the University of Cambridge.
- Table of contents (9 chapters)
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Introduction
Pages 1-20
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Gravity Beyond General Relativity
Pages 21-51
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Cosmological Stability of Massive Bigravity
Pages 55-70
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Linear Structure Growth in Massive Bigravity
Pages 71-101
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The Geometry of Doubly-Coupled Bigravity
Pages 103-115
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Table of contents (9 chapters)
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Bibliographic Information
- Bibliographic Information
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- Book Title
- Cosmology Beyond Einstein
- Authors
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- Adam R. Solomon
- Series Title
- Springer Theses
- Copyright
- 2017
- Publisher
- Springer International Publishing
- Copyright Holder
- Springer International Publishing AG
- eBook ISBN
- 978-3-319-46621-7
- DOI
- 10.1007/978-3-319-46621-7
- Hardcover ISBN
- 978-3-319-46620-0
- Softcover ISBN
- 978-3-319-83549-5
- Series ISSN
- 2190-5053
- Edition Number
- 1
- Number of Pages
- XXI, 231
- Number of Illustrations
- 20 illustrations in colour
- Topics
