Results 11 to 20 of about 8,643,173 (282)

Dark energy without dark energy [PDF]

AIP Conference Proceedings, 2006
It is proposed that the current acceleration of the universe is not originated by the existence of a mysterious dark energy fluid nor by the action of extra terms in the gravity Lagrangian, but just from the sub-quantum potential associated with the CMB ...
Gonzalez-Diaz, Pedro F.
core   +6 more sources

Dark Energy [PDF]

Journal of Physics: Conference Series, 2011
We review the problem of dark energy, including a survey of theoretical models and some aspects of numerical studies.Comment: 185 pages, 29 figures, 8 tables, more references added.
Li, Miao, Li, Xiao-Dong, Wang, Shuang, Wang, Yi   +3 more
core   +6 more sources

Dark Energy and Dark Matter [PDF]

Physics Letters B, 2003
It is a puzzle why the densities of dark matter and dark energy are nearly equal today when they scale so differently during the expansion of the universe. This conundrum may be solved if there is a coupling between the two dark sectors. In this paper we
A. Riotto, Amendola, Amendola, Amendola, Anderson, Carlstrom, Carroll, Casas, D. Comelli, de Bernardis, Ellis, Ellis, Ellis, Ellis, Fornengo, Gasperini, Giudice, Joyce, Joyce, Kolb, M. Pietroni, Nihei, Olive, Olive, Peebles, Perlmutter, Pietroni, Riess, Salati, Stompor, Tocchini-Valentini   +30 more
core   +6 more sources

Metastable dark energy

Physics Letters B, 2017
15 pages, 3 figures, references added.
Landim, Ricardo G., Abdalla, Elcio
openaire   +5 more sources

Dipolar Dark Matter and Dark Energy [PDF]

Physical Review D, 2009
In previous work [L. Blanchet and A. Le Tiec, Phys. Rev. D 78, 024031 (2008)], a model of dark matter and dark energy based on the concept of gravitational polarization was investigated.
A. Lichnerowicz, Alexandre Le Tiec, B. Famaey, Luc Blanchet, R. H. Sanders   +4 more
core   +4 more sources

Dark sector unifications: Dark matter-phantom energy, dark matter - constant w dark energy, dark matter-dark energy-dark matter

Physics Letters B, 2019
The paper brings a novel approach to unification of dark matter and dark energy in terms of a cosmic fluid. A model is introduced in which the cosmic fluid speed of sound squared is defined as a function of its equation of state (EoS) parameter. It is shown how logarithmic part of this function results in dynamical regimes previously not observed in ...
Dalibor Perković, Hrvoje Štefančić
openaire   +5 more sources

Conformal Gravity: Dark Matter and Dark Energy

Entropy, 2013
This short review examines recent progress in understanding dark matter, dark energy, and galactic halos using theory that departs minimally from standard particle physics and cosmology.
Cottingham, DeWitt, Dodelson, LeMaître, Nesbet, Peskin, Robert Nesbet, Sanders, Tully, Weyl   +9 more
core   +5 more sources

Barrow entropic dark energy: A member of generalized holographic dark energy family [PDF]

Physics Letters B, 2021
The holographic cut-off, in the formalism of generalized holographic dark energy (HDE), is generalized to depend on LIR=LIR(Lp,L˙p,L¨p,⋯,Lf,L˙f,⋯,a), where Lp and Lf are the particle horizon and future horizon respectively, and a is the scale factor of ...
S. Nojiri, S. Odintsov, Tanmoy Paul
semanticscholar   +3 more sources

Evidence for Dark Energy Driven by Star Formation: Information Dark Energy? [PDF]

Entropy (Basel)
Evidence is presented for dark energy resulting directly from star formation. A survey of stellar mass density measurements, SMD(a), as a function of universe scale size a, was found to be described by a simple CPL w0 − wa parameterisation that was in ...
Gough MP.
europepmc   +2 more sources

The dark matter and dark energy [PDF]

SHS Web of Conferences, 2023
The dark matter and dark energy are one of the biggest challenges facing contemporary physics and astronomy. Dark energy and dark matter play an important role the universe.
Wu Yumiao
doaj   +1 more source