Results 111 to 120 of about 108,427 (203)

100 years of mathematical cosmology: Models, theories and problems, Part B. [PDF]

Philos Trans A Math Phys Eng Sci, 2022
Cotsakis S, Yefremov AP.
europepmc   +1 more source

Unitarity problems for an effective field theory description of early universe cosmology. [PDF]

Eur Phys J C Part Fields, 2022
Brandenberger R, Kamali V.
europepmc   +1 more source

Electromagnetic Conversion into Kinetic and Thermal Energies. [PDF]

Entropy (Basel), 2023
Brandenburg A, Protiti NN.
europepmc   +1 more source

braneworld cosmology and holography [PDF]

, 2002
This thesis is devoted to studying two important aspects of braneworld physics: their cosmology and their holography. We examine the Einstein equations induced on a general (n - 2)-brane of arbitrary tension, embedded in some n-dimensional bulk.
Padilla, Antonio
core  

Inflationary models with Gauss–Bonnet coupling in light of ACT observations

European Physical Journal C: Particles and Fields
Recent analyses combining Atacama Cosmology Telescope (ACT) data with other cosmological datasets report a higher scalar spectral index $$n_s$$ n s , creating tension with a wide range of inflationary models.
Yigan Zhu, Qing Gao, Yungui Gong, Zhu Yi
doaj   +1 more source

Inflation based on the Tsallis entropy

European Physical Journal C: Particles and Fields
We study the inflationary scenario in the Tsallis entropy-based cosmology. The Friedmann equations in this setup can be derived by using the first law of thermodynamics.
Zeinab Teimoori, Kazem Rezazadeh, Abasat Rostami   +2 more
doaj   +1 more source

Proposed physical mechanism that gives rise to cosmic inflation. [PDF]

Sci Rep, 2023
Law BM.
europepmc   +1 more source

Is Planckian Discreteness Observable in Cosmology?

Universe
A Planck scale inflationary era—in a quantum gravity theory predicting discreteness of quantum geometry at the fundamental scale—produces the scale-invariant spectrum of inhomogeneities with a very small tensor-to-scalar ratio of perturbations and a hot ...
Gabriel R. Bengochea, Gabriel León, Alejandro Perez   +2 more
doaj   +1 more source

Dynamical system analysis of interacting dark energy in LRS Bianchi type I cosmology. [PDF]

Sci Rep, 2023
Rathore S, Singh SS.
europepmc   +1 more source

Was Newtonian Cosmology Really Inconsistent? [PDF]

, 2008
This paper follows up a debate as to the consistency of Newtonian cosmology. Whereas Malament (1995) has shown that Newtonian cosmology *is* not inconsistent, to date there has been no analysis of Norton’s claim (1995) that Newtonian cosmology *was ...
Vickers, Peter John
core