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Cosmology beyond Einstein

Solomon, Adam Ross.

Cosmology beyond Einstein

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Cosmology beyond Einsteinby Adam Ross Solomon.
作者:	Solomon, Adam Ross.
出版者:	Cham :Springer International Publishing :2017.
面頁冊數:	xxi, 231 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
標題:	Cosmology.
電子資源:	http://dx.doi.org/10.1007/978-3-319-46621-7
ISBN:	9783319466217$q(electronic bk.)

Cosmology beyond Einstein
Solomon, Adam Ross.

Cosmology beyond Einstein[electronic resource] /by Adam Ross Solomon. - Cham :Springer International Publishing :2017. - xxi, 231 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Gravity Beyond General Relativity -- Cosmological Stability of Massive Bigravity -- Linear Structure Growth in Massive Bigravity -- The Geometry of Doubly-Coupled Bigravity -- Cosmological Implications of Doubly-Coupled Massive Bigravity -- Cosmological Implications of Doubly-Coupled Massive Gravity -- Lorentz Violation During Inﬂation -- Discussion and Conclusions.

This thesis 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.

ISBN: 9783319466217$q(electronic bk.)

Standard No.: 10.1007/978-3-319-46621-7doiSubjects--Topical Terms:

228629
Cosmology.

LC Class. No.: QB981

Dewey Class. No.: 523.1

Cosmology beyond Einstein
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505 0 $a Introduction -- Gravity Beyond General Relativity -- Cosmological Stability of Massive Bigravity -- Linear Structure Growth in Massive Bigravity -- The Geometry of Doubly-Coupled Bigravity -- Cosmological Implications of Doubly-Coupled Massive Bigravity -- Cosmological Implications of Doubly-Coupled Massive Gravity -- Lorentz Violation During Inﬂation -- Discussion and Conclusions.
520 $a This thesis 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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