Results 1 to 10 of about 23,762 (159)

Borel resummation of secular divergences in stochastic inflation

open access: yesJournal of High Energy Physics, 2023
We make use of Borel resummation to extract the exact time dependence from the divergent series found in the context of stochastic inflation. Correlation functions of self-interacting scalar fields in de Sitter spacetime are known to develop secular IR ...
Masazumi Honda   +3 more
doaj   +1 more source

Investigation of the quantum vacuum as an energy sink for subcritical and supercritical vaporization lasers

open access: yesHeliyon, 2020
In this paper, it is shown that the quantum electrodynamic vacuum particle production rate by a vaporization laser is negligible and is not a significant energy sink at electric field strengths beyond the Schwinger Limit.
Jeffrey S. Lee, Gerald B. Cleaver
doaj   +1 more source

Aether SUSY breaking: can aether be alternative to F-term SUSY breaking?

open access: yesJournal of High Energy Physics, 2021
We investigate supersymmetry (SUSY) breaking scenarios where both SUSY and Lorentz symmetry are broken spontaneously. For concreteness, we propose models in which scalar fluid or vector condensation breaks Lorentz symmetry and accordingly SUSY.
Yusuke Yamada
doaj   +1 more source

Magnetogenesis from a rotating scalar: à la scalar chiral magnetic effect

open access: yesJournal of High Energy Physics, 2020
The chiral magnetic effect (CME) is a phenomenon in which an electric current is induced parallel to an external magnetic field in the presence of chiral asymmetry in a fermionic system.
Kohei Kamada, Chang Sub Shin
doaj   +1 more source

New description of the scaling evolution of the cosmological magneto-hydrodynamic system

open access: yesPhysics Letters B, 2023
We present a new description of cosmological evolution of the primordial magnetic field under the condition that it is non-helical and its energy density is larger than the kinetic energy density.
Fumio Uchida   +3 more
doaj   +1 more source

Planets in the early Universe [PDF]

open access: yesAstrophysics and Space Science, 2013
21 pages, 4 figs, accepted in ...
Shchekinov, Yu. A.   +2 more
openaire   +2 more sources

A monster in the early Universe [PDF]

open access: yesNature, 2011
The most distant quasar yet discovered sets constraints on the formation mechanism of black holes. Its light spectrum has tantalizing features that are expected to be observed before the reionization epoch ended.
openaire   +3 more sources

Shocks in the Early Universe [PDF]

open access: yesPhysical Review Letters, 2016
We point out a surprising consequence of the usually assumed initial conditions for cosmological perturbations. Namely, a spectrum of Gaussian, linear, adiabatic, scalar, growing mode perturbations not only creates acoustic oscillations of the kind observed on very large scales today, it also leads to the production of shocks in the radiation fluid of ...
Pen, Ue-Li, Turok, Neil
openaire   +4 more sources

Massive first star binaries as new tools for Galactic archaeology [PDF]

open access: yesEPJ Web of Conferences, 2022
Binary systems are important probes of the origin of stars with peculiar chemical features through the interactions between two stars. We have studied the evolution of a metal-free massive binary after the collision of the supernova ejecta with a low ...
Suda Takuma   +4 more
doaj   +1 more source

MOND in the early universe [PDF]

open access: yesThe 9th astrophysics conference: After the dark ages, when galaxies were young (the Universe at 2<Z<5), 1999
Contribution to '98 October conference, After the Dark Ages, eds.
openaire   +2 more sources

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