On preheating in higgs inflation

Author: eger

August undefined, 2024

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 … Web11 de jul. de 2024 · During inflation, we investigated the effect of the large/small on the non-gaussianity. We found that large/small could not provide the large non-gaussianity. …

[PDF] On preheating in Higgs inflation Semantic Scholar

Web15 de mar. de 2009 · The U.S. Department of Energy's Office of Scientific and Technical Information 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 … impact demolition

Preheating in Palatini Higgs inflation on the lattice - IOPscience

Web2.2. Higgs Inflation From Approximate Scale Invariance. Although the toy model presented above contains many of the key ingredients of Higgs inflation, it is not phenomenologically viable. In particular, the Einstein-frame potential is completely shift-symmetric and does not allow for inflation to end. WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. WebRecent analyses of cosmological data suggest the presence of an extra relativistic component beyond the Standard Model content. The Higgs-Dilaton cosmological model predicts the existence of a massless particle - the d… impact depression training

Higgs inflation in metric and Palatini formalisms: required suppression ...

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 … Web9 de jul. de 2024 · Correspondingly, the typical energy of particles produced during the first stage of preheating can remain comparable to or below the cutoff scale of the theory. As … impact dewalt 1/2WebMotivated by a recent discussion about the role of flat directions, a typical feature of supersymmetric models, in the process of particle production in the early universe a consistent model of inflation and preheating in supergravity with MSSM fields has been built. It is based on a model proposed by M. Kawasaki, M. Yamaguchi and T. Yanagida. … impact description of risk

"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]. ... " - On preheating in higgs inflation

On preheating in higgs inflation

Preheating in Palatini Higgs inflation on the lattice

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 … Web12 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 …

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Web30 de mar. de 2024 · Higgs inflation in metric and Palatini formalisms: required suppression of higher dimensional operators. Ryusuke Jinno 1,2, ... [62] J. Rubio and E.S. Tomberg, 2024 Preheating in Palatini Higgs inflation J. Cosmol. Astropart. Phys. 2024 04 021 [1902.10148] Preprint; Google Scholar 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 …

WebModified 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 … Web6 de out. de 2024 · [109] Hamada Yuta, Kawana Kiyoharu and Scherlis Adam 2024 On Preheating in Higgs Inflation JCAP 03 062 (arXiv:2007.04701) Crossref; Preprint; Google Scholar [110] Ema Yohei, Mukaida Kyohei and van de Vis Jorinde 2024 Renormalization group equations of Higgs-R^2 inflation JHEP 02 109 (arXiv:2008.01096)

WebOn Preheating in Higgs Inflation - CORE Reader 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 …

WebSoon after the end of inflation, the field oscillates, leading to the creation of particles in a process called reheating. If reheating begins with parametric resonance, the process is called preheating. New Higgs Inflation presumes that the Higgs field is the scalar field in question, involving a characteristic non-minimal "derivative" coupling.

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. impact deprescribing toolWeb8 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-right panel corresponds to the single-field case. The box size of the simulations at the end of inflation correspond to L ≈ 5 H − 1. Reuse & Permissions impact design-buildWebSpacetime 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 … impact derby partsWeb11 de jul. de 2024 · During inflation, we investigated the effect of the large/small on the non-gaussianity. We found that large/small could not provide the large non-gaussianity. In this paper, we divided the preheating stage to be quadratic regime and quartic regime. During the quadratic regime, the gauge bosons production is the most dominant. impact demolition milwaukeeWeb24 de mar. de 2024 · Strong coupling in Higgs inflation at high energies hinders a joint description of inflation, reheating and low-energy dynamics. The situation may be … impact+ derbyWebWe consider the preheating in the Higgs inflation. We argue that the choice of the higher dimensional operator affects the dynamics of the preheating. 2. Talk Plan 1. Higgs inﬂaiton 2. Preheating and higher dim. op. 3. Standard Model The Higgs boson is only elementary scalar in the Standard Model. impact dhs applicationWeb26 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 … lists after a colon