On preheating in higgs inflation
Web15 de mar. de 2009 · The U.S. Department of Energy's Office of Scientific and Technical Information Web9 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 …
On preheating in higgs inflation
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Web27 de fev. de 2024 · Progress in Higgs inflation. Dhong Yeon Cheong, Sung Mook Lee, Seong Chan Park. We review the recent progress in Higgs inflation focusing on Higgs- … 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.
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. 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. WebWe 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 …
Web26 de fev. de 2024 · This cutoff scale guarantees the perturbative analysis of this model throughout inflation and preheating, alleviating the unitarity problem of single-field Higgs inflation [19, 26,27,28] . This additional \(R^2\) term can also be induced through quantum loop corrections in the large- \(\xi \) limit. 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.
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 …
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]. ... hager thermostaatWebWe 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, … bramsche badWeb9 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 … brampton wood storageWeb24 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 … brampton youth programsWeb24 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 … brampton youth clubWeb24 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 … hager thermostat mode d\u0027emploiWebA 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. hagerthey repair shop