TY - CHAP
T1 - Dark energy
T2 - Observational status and theoretical models
AU - Tsujikawa, Shinji
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - About 70 % of the energy density of the Universe today consists of dark energy responsible for cosmic acceleration. We present observational bounds on dark energy constrained by the type Ia supernovæ, cosmic microwave background, and baryon acoustic oscillations. We also review theoretical attempts to explain the origin of dark energy. This includes the cosmological constant, modified matter models (such as quintessence, k-essence, coupled dark energy, unified models of dark energy and dark matter), and modified gravity models (such as f(R) gravity, scalar-tensor theories, braneworlds).
AB - About 70 % of the energy density of the Universe today consists of dark energy responsible for cosmic acceleration. We present observational bounds on dark energy constrained by the type Ia supernovæ, cosmic microwave background, and baryon acoustic oscillations. We also review theoretical attempts to explain the origin of dark energy. This includes the cosmological constant, modified matter models (such as quintessence, k-essence, coupled dark energy, unified models of dark energy and dark matter), and modified gravity models (such as f(R) gravity, scalar-tensor theories, braneworlds).
UR - http://www.scopus.com/inward/record.url?scp=84870489131&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870489131&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-33036-0_11
DO - 10.1007/978-3-642-33036-0_11
M3 - Chapter
AN - SCOPUS:84870489131
SN - 9783642330353
T3 - Lecture Notes in Physics
SP - 289
EP - 331
BT - Quantum Gravity and Quantum Cosmology
A2 - Calcagni, Gianluca
A2 - Papantonopoulos, Lefteris
A2 - Siopsis, George
A2 - Tsamis, Nikos
ER -