On preheating in higgs inflation

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August undefined, 2024

Web1 de out. de 2024 · Download PDF Abstract: We perform an extensive analysis of linear fluctuations during preheating in Higgs inflation in the Einstein frame, where the fields are minimally coupled to gravity, but the field-space metric is nontrivial. The self-resonance of the Higgs and the Higgsed gauge bosons are governed by effective masses that scale … WebThe meaning of PREHEAT is to heat (something) beforehand; especially : to heat (an oven) to a designated temperature before using for cooking. How to use preheat in a sentence.

Gravitational dynamics in Higgs inflation: Preinflation and preheating …

Web26 de fev. de 2024 · Abstract: We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what happens in the metric formulation of the model, the … WebIt has been argued that the mixed Higgs-R 2 model acts as the UV extension of the Higgs inflation, pushing up its cut-off scale in the vacuum close up to the Planck scale. In this … how do we experience taste

Violent preheating in inflation with nonminimal coupling

Web1 de fev. de 2024 · We study particle production at the preheating era in inflation models with nonminimal coupling ξφ{sup 2} R and quartic potential λφ{sup 4}/4 for several cases: real scalar inflaton, complex scalar inflaton and Abelian Higgs inflaton. We point out that the preheating proceeds much more violently than previously thought. Web8 de jul. de 2024 · This simulations corresponds to scenarios of preheating with g ≤ 10 − 3 from Fig. 3, but including perturbations in the initial state of the Higgs field. The bottom … WebIt has recently been suggested that at the post-inflationary stage of the mixed Higgs-R 2 model of inflation efficient particle production can arise from the tachyonic instability of the Higgs field. It might complete the preheating of the Universe if appropriate conditions are satisfied, especially in the Higgs-like regime. In this paper, we study this behavior in … how do we examine ourselves

On The Inflation and Reheating Features in The Higgs-$R^2$ Model

Preheating in Palatini Higgs inflation - IOPscience

WebRecently, the problem of unitarity violation during the preheating stage of Higgs inflation with a large non-minimal coupling has been much discussed in the literature. We point out that this problem can be translated into a strong coupling problem for the dimensionless effective coupling, and that the existence of these problems is highly dependent on the … Web24 de mar. de 2024 · We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the … how much something is worthWeb6 de set. de 2024 · Preheating in Palatini Higgs inflation on the lattice To cite this article: F. Dux et al JCAP09(2024)015 View the article online for updates and enhancements. how much soluble fiber in spinach

"Web15 de mar. de 2009 · The U.S. Department of Energy's Office of Scientific and Technical Information " - On preheating in higgs inflation

On preheating in higgs inflation

Preheating in Palatini Higgs inflation on the lattice - IOPscience

Web8 de mar. de 2024 · We propose a scenario of spontaneous leptogenesis in Higgs inflation with help from two additional operators: the Weinberg operator (Dim 5) and the derivative coupling of the Higgs field and the current of lepton number (Dim 6). The former is responsible for lepton number violation and the latter induces chemical potential for … Web1 de mar. de 2024 · @article{osti_1851588, title = {On preheating in Higgs inflation}, author = {Hamada, Yuta and Kawana, Kiyoharu and Scherlis, Adam}, abstractNote = …

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Web9 de jul. de 2024 · The initial PBH mass is then below 10 ⁶ g, and predictions for the CMB observables are the same as in tree-level Higgs inflation, n s =0.96 and r=5×10 ⁻³ … WebFurthermore, thermal fluctuations of the Higgs field cannot be neglected in the proceeding reheating epoch. We discuss the Higgs vacuum fluctuations during inflation, preheating, and reheating, and show that the Higgs metastability problem is severe unless the energy scale of the inflaton potential is much lower than the GUT scale.

Web4 de out. de 2013 · The preheating in the model was analysed in [37, 38]. After the end of inflation, χ < M P (), the potential can be approximated by a quadratic function (with just a small quartic part around the origin corresponding to the SM potential for χ < M P /ξ). Web18 de mai. de 2024 · We study the post-inflationary dynamics for reheating and freeze-in dark matter in the Higgs-R2 inflation model. Taking the perturbative approach for reheating, we determine the evolution of the temperature for radiation bath produced during reheating and determine the maximum and reheating temperatures of the Universe. …

WebWe use a semiclassical lattice approach to perform the first nonlinear study of preheating in R2-healed Higgs inflation, in the “R2-like” regime where the curvature-squared coupling β and nonminimal coupling ξ of the Higgs field contribute similarly to the CMB scalar perturbations. Preheating occurs first through tachyonic production of Higgs bosons, … Web17 de abr. de 2015 · In the Palatini formulation, the field re-enters the very flat inflationary plateau during preheating, leading to new periods of inflation, and preheating takes less than one e-fold [194,195]. ...

Web19 de mar. de 2024 · Dynamical emergence of scalaron in Higgs inflation; Towards distinguishing variants of non-minimal inflation; Planck scale black hole dark matter from …

Web10 de abr. de 2024 · It has been argued that the mixed Higgs-R 2 model acts as the UV extension of the Higgs inflation, pushing up its cut-off scale in the vacuum close up to … how do we experience the paschal mysteryWebSpacetime torsion is known to be highly suppressed at the end of inflation, which is called preheating. This result was recently shown in (EPJ C (2024)) in the frame of Einstein–Cartan–Brans–Dicke inflation. In this paper, it is shown that a torsionful magnetogenesis in QED effective Lagrangean drives a torsion damping in order to be … how do we express emotionsWebModified hybrid inflation, reheating, and stabilization of the electroweak vacuum . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you … how do we explicitly cast data types in javaWeb6 de set. de 2024 · We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the Higgs field … how much soluble fiber is in flax seedWebSudhakantha Girmohanta, Seung J. Lee, Yuichiro Nakai, Motoo Suzuki. Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th) how much soluble fiber is in a bananaWeb9 de jul. de 2024 · Recently, the problem of unitarity violation during the preheating stage of Higgs inflation with a large non-minimal coupling has been much discussed in the … how do we express feelings in visual artsWeb12 de abr. de 2024 · We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what happens in the metric formulation of the model, the Universe does not reheat through the creation of gauge bosons only, but also through the tachyonic production of Higgs excitations. how do we evaluate reliability and validity