Results 21 to 30 of about 147,206 (344)

Small scale structures in coupled scalar field dark matter

open access: diamondPhysics Letters B, 2014
We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon–bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations.
J. Beyer, C. Wetterich
doaj   +2 more sources

Constraints on Scalar Field Dark Matter from Colocated Michelson Interferometers. [PDF]

open access: yesPhysical Review Letters, 2021
Low-mass (sub-eV) scalar field dark matter may induce apparent oscillations of fundamental constants, resulting in corresponding oscillations of the size and the index of refraction of solids.
L. Aiello   +6 more
semanticscholar   +7 more sources

Brief Review on Scalar Field Dark Matter Models

open access: yesFrontiers in Astronomy and Space Sciences, 2019
The existence of dark matter in the universe has been solidly established in the last decades, after the arrival of accurate cosmological and astrophysical observations, and some consider it the most challenging problem in modern physics.
L. Arturo Ureña-López
doaj   +2 more sources

Scalar field dark matter with a cosh potential, revisited [PDF]

open access: greenJournal of Cosmology and Astroparticle Physics, 2019
Dark matter models in which the constituent particle is an ultra-light boson have become part of the mainstream discussion in cosmology and astrophysics.
L. Arturo Ureña-López
openalex   +3 more sources

Dark Matter from Scalar Field Fluctuations. [PDF]

open access: yesPhysical Review Letters, 2019
Dark matter (DM) may have its origin in a pre-big-bang epoch, the cosmic inflation. Here, we consider for the first time a broad class of scenarios where a massive free scalar field unavoidably reaches an equilibrium between its classical and quantum ...
Tommi Tenkanen
semanticscholar   +5 more sources

Cosmological constraints on scalar field dark matter [PDF]

open access: yesInternational Journal of Modern Physics D, 2015
This paper aims to put constraints on the parameters of the Scalar Field Dark Matter (SFDM) model, when dark matter is described by a free real scalar field filling the whole universe, plus a cosmological constant term.
A. A. Escobal   +3 more
semanticscholar   +5 more sources

Scalar field dark matter, cross section and Planck-scale physics [PDF]

open access: green, 2002
In recent papers we have proposed that the dark matter of the Universe could be from scalar field origin. In this letter, we find that if the scale of renormalization of the model is of order of the Planck Mass, then a scalar field $\Phi $ endowed with ...
Tonatiuh Matos   +1 more
openalex   +4 more sources

Scalar Field (Wave) Dark Matter [PDF]

open access: yesThe Fourteenth Marcel Grossmann Meeting, 2016
Recent high-quality observations of dwarf and low surface brightness (LSB) galaxies have shown that their dark matter (DM) halos prefer flat central density profiles.
Matos, T., Robles, Victor H.
core   +2 more sources

The continuous tower of scalar fields as a system of interacting dark matter–dark energy

open access: diamondPhysics Letters B, 2015
This paper aims to introduce a new parameterisation for the coupling Q in interacting dark matter and dark energy models by connecting said models with the Continuous Tower of Scalar Fields model.
Paulo Santos
doaj   +2 more sources

Galactic collapse of scalar field dark matter [PDF]

open access: yesClassical and Quantum Gravity, 2001
We present a scenario for core galaxy formation based on the hypothesis of scalar field dark matter. We interpret galaxy formation through the collapse of as calar field fluctuation.
M. Alcubierre   +6 more
semanticscholar   +6 more sources

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