Results 41 to 50 of about 6,704,491 (163)

Game theory in cosmology

open access: yesPhysics of the Dark Universe
v2, Appendix added with some more details on the teleodynamic field, 58 pages with no ...
Oem Trivedi, Venkat Venkatasubramanian
openaire   +2 more sources

Cosmological perturbation theory revisited [PDF]

open access: yesClassical and Quantum Gravity, 2011
29 pages, no figures, minor ...
Uggla, Claes, Wainwright, John
openaire   +3 more sources

Cosmology of the proxy theory to massive gravity [PDF]

open access: yes, 2014
In this paper, we scrutinize very closely the cosmology in the proxy theory to massive gravity obtained in de Rham and Heisenberg [Phys. Rev. D 84, 043503 (2011)].
Lavinia Heisenberg   +2 more
semanticscholar   +1 more source

Horndeski theory and beyond: a review [PDF]

open access: yesReports on progress in physics. Physical Society, 2019
This article is intended to review the recent developments in the Horndeski theory and its generalization, which provide us with a systematic understanding of scalar–tensor theories of gravity as well as a powerful tool to explore astrophysics and ...
Tsutomu Kobayashi
semanticscholar   +1 more source

COSMOLOGY AND THE FATE OF DILATATION SYMMETRY [PDF]

open access: yes, 1988
We discuss the cosmological constant problem in the light of dilatation symmetry and its possible anomaly. For dilatation symmetric quantum theories realistic asymptotic cosmology is obtained provided the effective potential has a nontrivial minimum. For
C. Wetterich
semanticscholar   +1 more source

Inflationary cosmology: theory and phenomenology

open access: yesClassical and Quantum Gravity, 2002
This article gives a brief overview of some of the theory behind the inflationary cosmology, and discusses prospects for constraining inflation using observations. Particular care is given to the question of falsifiability of inflation or of subsets of inflationary models.
openaire   +2 more sources

Viable cosmology in bimetric theory [PDF]

open access: yes, 2014
We study cosmological perturbations in bimetric theory with two fluids each of which is coupled to one of the two metrics. Focusing on a healthy branch of background solutions, we clarify the stability of the cosmological perturbations. For this purpose,
A. D. Felice   +4 more
semanticscholar   +1 more source

Dynamics of M-theory cosmology [PDF]

open access: yesPhysical Review D, 2000
A complete global analysis of spatially-flat, four-dimensional cosmologies derived from the type IIA string and M-theory effective actions is presented. A non--trivial Ramond-Ramond sector is included. The governing equations are written as a dynamical system.
Billyard, Andrew P.   +3 more
openaire   +2 more sources

Lorentzian quantum cosmology [PDF]

open access: yes, 2017
We argue that the Lorentzian path integral is a better starting point for quantum cosmology than its Euclidean counterpart. In particular, we revisit the minisuperspace calculation of the Feynman path integral for quantum gravity with a positive ...
Job Leon Feldbrugge   +2 more
semanticscholar   +1 more source

Cosmology from string theory [PDF]

open access: yesPhysical Review D, 2007
Version to be published in Physical Review ...
Anchordoqui, Luis   +3 more
openaire   +2 more sources

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