Results 11 to 20 of about 1,005 (182)

Hillclimbing inflation in metric and Palatini formulations

open access: yesPhysics Letters B, 2019
A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity.
Ryusuke Jinno   +3 more
doaj   +1 more source

Machine learning cosmic inflation

open access: yesPhysical Review D, 2023
15 pages, 11 figures, 2 tables.
Ahana Kamerkar   +2 more
openaire   +2 more sources

Cosmic Inflation, Quantum Information and the Pioneering Role of John S Bell in Cosmology

open access: yesUniverse, 2019
According to the theory of cosmic inflation, the large scale structures observed in our Universe (galaxies, clusters of galaxies, Cosmic Background Microwave—CMB—anisotropy…) are of quantum mechanical origin. They are nothing but vacuum
Jérôme Martin
doaj   +1 more source

Renormalization-group running induced cosmic inflation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
33 pages, 14 ...
Marian I. G.   +4 more
openaire   +4 more sources

Stable small spatial hairs in a power-law k-inflation model

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this paper, we extend our investigation of the validity of the cosmic no-hair conjecture within non-canonical anisotropic inflation. As a result, we are able to figure out an exact Bianchi type I solution to a power-law k-inflation model in the ...
Tuan Q. Do
doaj   +1 more source

Anisotropic inflation in dipolar Bose–Einstein condensates

open access: yesNew Journal of Physics, 2023
Early during the era of cosmic inflation, rotational invariance may have been broken, only later emerging as a feature of low-energy physics. This motivates ongoing searches for residual signatures of anisotropic space-time, for example in the power ...
A Rana, A Pendse, S Wüster, S Panda
doaj   +1 more source

Holography of Little Inflation

open access: yesNuclear Physics B, 2015
For several crucial microseconds of its early history, the Universe consisted of a Quark–Gluon Plasma. As it cooled during this era, it traced out a trajectory in the quark matter phase diagram.
Brett McInnes
doaj   +1 more source

Transplanckian censorship and global cosmic strings

open access: yesJournal of High Energy Physics, 2017
Large field excursions are required in a number of axion models of inflation. These models also possess global cosmic strings, around which the axion follows a path mirroring the inflationary trajectory. Cosmic strings are thus an interesting theoretical
Matthew J. Dolan   +3 more
doaj   +1 more source

Probing the BSM physics with CMB precision cosmology: an application to supersymmetry

open access: yesJournal of High Energy Physics, 2018
The cosmic history before the BBN is highly determined by the physics that operates beyond the Standard Model (BSM) of particle physics and it is poorly constrained observationally.
Ioannis Dalianis, Yuki Watanabe
doaj   +1 more source

Primordial monopoles and strings, inflation, and gravity waves

open access: yesJournal of High Energy Physics, 2021
We consider magnetic monopoles and strings that appear in non-supersymmetric SO(10) and E 6 grand unified models paying attention to gauge coupling unification and proton decay in a variety of symmetry breaking schemes.
Joydeep Chakrabortty   +3 more
doaj   +1 more source

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