Zobrazeno 1 - 10
of 3 442
pro vyhledávání: '"Escrivá, A."'
This study investigates the formation of primordial black holes (PBHs) resulting from the collapse of adiabatic fluctuations with large amplitudes and non-Gaussianity. Ref. \cite{Uehara:2024yyp} showed that fluctuations with large amplitudes lead to
Externí odkaz:
http://arxiv.org/abs/2411.07648
Autor:
Escrivà, Albert, Yoo, Chul-Moon
In this letter, we investigate the impact of non-spherical effects on the Primordial Black Hole mass function, based on the ellipticity-dependent threshold calculated by performing $3+1$ relativistic numerical simulations. We consider an equation of
Externí odkaz:
http://arxiv.org/abs/2410.03451
Autor:
Escrivà, Albert, Yoo, Chul-Moon
We perform $3+1$ relativistic numerical simulations to study primordial black hole (PBH) formation from the collapse of adiabatic super-horizon non-spherical perturbations generated from curvature fluctuations obeying random Gaussian statistics with
Externí odkaz:
http://arxiv.org/abs/2410.03452
Supposing the Laser Interferometer Space Antenna (LISA) gravitational wave (GW) detector, we exhibit the detectability of a hypothetical smooth crossover in the early universe beyond the Standard Model of particle physics through the scalar-induced g
Externí odkaz:
http://arxiv.org/abs/2404.12591
This study investigates the formation of type II primordial black holes (PBHs) resulting from extremely large amplitudes of initial fluctuations in a radiation-dominated universe. We find that, for a sufficiently large initial amplitude, the configur
Externí odkaz:
http://arxiv.org/abs/2401.06329
Primordial Black Holes and Induced Gravitational Waves from a Smooth Crossover beyond Standard Model
Gravitational waves (GWs) induced by primordial fluctuations can be affected by the modification of the sound speed $c^2_{\rm s}$ and the equation of state parameter $w$ once the curvature fluctuations reenter the cosmological horizon. That softening
Externí odkaz:
http://arxiv.org/abs/2311.17760
Given a finite field F_q and a positive integer n, a flag is a sequence of nested F_q-subspaces of a vector space F_q^n and a flag code is a nonempty collection of flags. The projected codes of a flag code are the constant dimension codes containing
Externí odkaz:
http://arxiv.org/abs/2311.06060
Autor:
Escrivà, Albert, Yoo, Chul-Moon
Publikováno v:
JCAP04(2024)048
We consider the formation of primordial black holes (PBHs), during the radiation-dominated Universe, generated from the collapse of super-horizon curvature fluctuations that are overlapped with others on larger scales. Using a set of different curvat
Externí odkaz:
http://arxiv.org/abs/2310.16482
Publikováno v:
JCAP10(2023)035
A class of inflationary scenarios for primordial black hole (PBH) formation include a small barrier in the slope of the potential. There, the inflaton slows down, generating an enhancement of primordial perturbations. Moreover, the background solutio
Externí odkaz:
http://arxiv.org/abs/2306.09990
Autor:
Santiago Felipe Luna-Romero, Xavier Serrano-Guerrero, Mauren Abreu de Souza, Guillermo Escrivá-Escrivà
Publikováno v:
Energy Reports, Vol 11, Iss , Pp 951-962 (2024)
The advancement of society and the raising of people's standards of living depend heavily on electricity in today's world. The ''zero energy buildings'' idea, which recommends that buildings become self-sufficient in renewable energy to prevent the e
Externí odkaz:
https://doaj.org/article/e38a1197764e44f0a45b4e06c89eec29
