Book Details
Format
Paperback / Softback
Book Series
Springer Theses
ISBN-10
3319835491
ISBN-13
9783319835495
Edition
Softcover reprint of the original 1st ed. 2017
Publisher
Springer International Publishing AG
Imprint
Springer International Publishing AG
Country of Manufacture
GB
Country of Publication
GB
Publication Date
Jun 29th, 2018
Print length
231 Pages
Product Classification:
Cosmology & the universeCosmology and the universePhysicsGravity
Ksh 16,200.00
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This work investigates the theoretical and cosmological implications of modifying Einstein's theory of general relativity. 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.
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.
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