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Carte Cosmology Beyond Einstein Adam Ross Solomon

Cosmology Beyond Einstein

Autor: Adam Ross Solomon
Limbă: engleză
Legare: Copertă tare
Editura: Springer International Publishing AG
Disponibilitate: În depozitul extern
Expediem în 10-13 zile
552.30 lei
This work investigates the theoretical and cosmological implications of modifying Einstein's theory...

Informații despre carte

Autor
Adam Ross Solomon
Limbă
engleză
Legare
Carte - Copertă tare
Publicat
2016
Pagini
231
EAN
9783319466200
ISBN
3319466208
Enbook ID
13938072
Editura
Springer International Publishing AG
Greutate
5089
Dimensiuni
155 x 235 x 20

Descriere completă

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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