Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Rojas, Clara"'
In this work, we study the evolution of an evaporating black hole, described by the Kerr--Taub--NUT metric, which emits scalar particles. We found that allowing the black hole to radiate massless scalar particles increases the angular momentum loss r
Externí odkaz:
http://arxiv.org/abs/2406.19224
In this article, we solve the Duffin--Kemmer--Petiau (DKP) equation in the presence of the cusp potential for spin--one particles. We derived the scattering solutions and calculated the bound states in terms of the Whittaker functions. We show that t
Externí odkaz:
http://arxiv.org/abs/2405.12722
In this work, we investigate the relativistic quantum motions of spin--zero scalar bosons via the Duffin--Kemmer--Petiau (DKP) equation with a position--dependent mass (PDM) system in the background of the topological defect space--time produced by a
Externí odkaz:
http://arxiv.org/abs/2403.13095
Stellar-driven galactic winds regulate the mass and energy content of star-forming galaxies. Emission- and absorption-line spectroscopy shows that these outflows are multiphase and comprised of dense gas clouds embedded in much hotter winds. Explaini
Externí odkaz:
http://arxiv.org/abs/2402.08745
This paper presents the CMB angular power spectrum obtained using the CAMB code for three different models of inflation: the Starobinsky inflationary model, the generalized Starobinsky inflationary model, and the chaotic inflationary model with a ste
Externí odkaz:
http://arxiv.org/abs/2401.00835
In this work we study four well-known inflationary scenarios that are reported by the most recent Planck observations: Natural inflation, Hilltop quartic inflation, Starobinsky inflationary model, and Large field power-law potentials $V(\phi)\sim \ph
Externí odkaz:
http://arxiv.org/abs/2311.04683
Autor:
Valladares, Sebastian, Rojas, Clara
In this article, we solve the Duffin--Kemmer--Petiau (DKP) equation in the presence of hyperbolic tangent potential for spin-one particles. By partitioning the spin-one spinor, we show that the DKP equation is equivalent to the Klein--Gordon equation
Externí odkaz:
http://arxiv.org/abs/2302.01730
This article presents the generalization of a zero spin hydrogen atom to a relativistic atomic model of hydrogen with dyons using the Klein--Gordon equation. The derivation of the Klein--Gordon equation for the particle of relative motion is shown. I
Externí odkaz:
http://arxiv.org/abs/2210.16134
Publikováno v:
Phys. Dark Univ. 40 (2023) 101188
In this work, we study the effects on the relevant observational parameters of an inflationary universe from a chaotic potential with a step. We numerically evolve the perturbation equations within both cold inflation and warm inflation. On the one h
Externí odkaz:
http://arxiv.org/abs/2205.00575
Autor:
Rojas, Clara
In this work we solved the equation of scalar and tensor perturbations for the generalized Starobinsky inflationary model using the improved uniform approximation method and the phase-integral method up to third-order in deviation. We compare our res
Externí odkaz:
http://arxiv.org/abs/2203.00741