Kniha Cosmology Beyond Einstein Adam Ross Solomon

Cosmology Beyond Einstein

Jazyk: Angličtina
Vazba: Pevná
Dostupnost: Skladem u dodavatele
Odesíláme za 10-13 dnů
2 286
This work investigates the theoretical and cosmological implications of modifying Einstein's theory...

Informace o knize

Jazyk
Angličtina
Vazba
Kniha - Pevná
Vydáno
2016
Stránek
231
EAN
9783319466200
ISBN
3319466208
Enbook ID
13938072
Hmotnost
5089
Rozměry
155 x 235 x 20

Kompletní popis

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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