Results 61 to 70 of about 8,643,173 (282)

Dark energy and the MSSM

open access: yesPhysical Review D, 2007
We consider the coupling of quintessence to observable matter in supergravity and study the dynamics of both supersymmetry breaking and quintessence in this context. We investigate how the quintessence potential is modified by supersymmetry breaking and analyse the structure of the soft supersymmetry breaking terms. We pay attention to their dependence
Brax, Philippe, Martin, Jérôme
openaire   +3 more sources

Thermodynamics of dark energy [PDF]

open access: yesFortschritte der Physik, 2008
AbstractThermodynamic properties of dark energy are discussed assuming that dark energy is described in terms of a selfinteracting complex scalar. We first show that, under certain assumptions, selfinteracting complex scalar field theories are equivalent to purely kinetic k‐essence models.
Bilić, Nevenko, Bilić, Neven
openaire   +4 more sources

Holographic Dark Information Energy: Predicted Dark Energy Measurement

open access: yesEntropy, 2013
Several models have been proposed to explain the dark energy that is causing universe expansion to accelerate. Here the acceleration predicted by the Holographic Dark Information Energy (HDIE) model is compared to the acceleration that would be produced ...
Michael Paul Gough
doaj   +1 more source

DARK ENERGY IN MOTION [PDF]

open access: yesInternational Journal of Modern Physics D, 2006
Recent large-scale peculiar velocity surveys suggest that large matter volumes could be moving with appreciable velocity with respect to the CMB rest frame. If confirmed, such results could conflict with the Cosmological Principle according to which the matter and CMB rest frames should converge on very large scales.
openaire   +5 more sources

Dark Energy from Cosmological Energy Conservation

open access: yesAdvances in Astronomy, 2023
The value of the gravitational wave energy density is unknown. Current progress in gravitational wave detection suggests that the energy density of the stochastic gravitational wave background (SGWB) will be estimated in the next decades. A derivation of
Manuel Uruena Palomo
doaj   +1 more source

Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid

open access: yesUniverse, 2022
A cosmological model with an exotic fluid is investigated. We show that the equation of state of this “modified Chaplygin” gas can describe the current accelerated expansion of the universe.
Hachemi Benaoum
doaj   +1 more source

Dark Energy simulations [PDF]

open access: yesPhysics of the Dark Universe, 2012
63 pages, 8 figures. Invited Review for the special issue "The next decade in Dark Matter and Dark Energy" of the new Open Access journal "Physics of the Dark Universe".
openaire   +2 more sources

The Dark Energy Survey: more than dark energy – an overview [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
32 pages, 15 figures; a revised Figure 1 and minor changes, to match the published MNRAS ...
Vinu Vikram   +156 more
openaire   +9 more sources

Condensate cosmology -- dark energy from dark matter [PDF]

open access: yes, 2002
Imagine a scenario in which the dark energy forms via the condensation of dark matter at some low redshift. The Compton wavelength therefore changes from small to very large at the transition, unlike quintessence or metamorphosis.
A. Arbey   +54 more
core   +2 more sources

Dark energy: Staring into darkness [PDF]

open access: yesNature, 2016
The path to understanding dark energy begins with a single question: has it always been the same throughout the history of the Universe?
openaire   +2 more sources

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