Książka Cosmology Beyond Einstein Adam Ross Solomon

Cosmology Beyond Einstein

Język: Angielski
Oprawa: Twarda
Dostępność: Dostępna u dostawcy
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This work investigates the theoretical and cosmological implications of modifying Einstein's theory...

Informacje o książce

Język
Angielski
Oprawa
Książka - Twarda
Data wydania
2016
strony
231
EAN
9783319466200
ISBN
3319466208
Enbook ID
13938072
Waga
5089
Wymiary
155 x 235 x 20

Pełny opis

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 in those 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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