Multifield inflation
Web24 mai 2006 · The theory of inflation with single and multiple fields is reviewed paying particular attention to the dynamics of adiabatic and entropy/isocurvature perturbations which provide the primary means of testing inflationary models. Web7 feb. 2007 · Multiple field inflation. Inflation offers a simple model for very early evolution of our Universe and the origin of primordial perturbations on large scales. Over the last …
Multifield inflation
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WebMultifield component allows to add/reorder/remove multiple instances of a field. In the simplest case this is a simple form input field (e.g. textfield, textarea) but it can also be a complex component acting as an aggregate of multiple subcomponents (e.g. address entry). The field to be included is defined in the subnode named field . Web10 dec. 2024 · Warm inflation explores the fact that inflationary dynamics is inherently a multifield problem, since the vacuum energy that drives inflation must eventually be converted to radiation, which generally is comprised of a variety of particle species.
Webicc.ub.edu Web20 iun. 2016 · Multi-field inflation and cosmological perturbations. We provide a concise review on multi-field inflation and cosmological perturbations. We discuss convenient …
Web14 ian. 2024 · Recent studies of inflation with multiple scalar fields have highlighted the importance of non-canonical kinetic terms in novel types of inflationary solutions. This … Web20 aug. 2024 · As a consequence, single-field Higgs inflation is made viable observationally by becoming a multi-field model with a specific potential for a fluctuation field interacting with the inflaton expectation value. Crucially, non-adiabatic methods of semiclassical quantum dynamics reveal important phases that can set suitable initial conditions for ...
Web14 mai 2008 · Originally, Dirac-Born-Infeld (DBI) inflation is a string-inspired inflation scenario where a probe D3-brane moves in the radial direction of a higher-dimensional warped throat. The speaker will first review this scenario, highlighting the difference with conventional inflation concerning the spectrum of perturbations and non-Gaussianities.
Web29 sept. 2024 · Inflationary dynamics within this family of models yield predictions for observables in close agreement with recent measurements, such as the spectral index of primordial curvature perturbations and the ratio of power spectra for … エキサイト bb 電話Web29 oct. 2015 · preheating phase for multifield models of inflation involving nonminimal couplings. In this paper, we study the single-field attractor behavior that these models … palma il vecchio allegoriaWeb4 mar. 2024 · One class of single-field inflationary models compatible with the recently-conjectured Swampland criteria would be those in which a Hubble slow-roll arameter ϵH is not the same as ϵV ∼ ( V′/V) 2. However, a roadblock for these models (with a convex potential) lie in the unacceptably high tensor-to-scalar ratio, r, generically predicted by them. palma il vecchioWebWe study the preheating phase for multifield models of inflation involving nonminimal couplings. The strong single-field attractor behavior during inflation in these models … エキサイトウーマン 漫画 チコWeb3 dec. 2013 · We describe a broad class of multi-field inflationary models with spontaneously broken conformal invariance. It generalizes the recently discovered class of cosmological attractors with a single inflaton field [1]. ... [10] D.I. Kaiser and E.I. Sfakianakis, Multifield Inflation after Planck: The Case for Nonminimal Couplings, [1304.0363 ... エキサイトウーマン 占い 無料Web13 mai 2013 · We develop an approach for linking the power spectra, bispectrum, and trispectrum to the geometric and kinematical features of multifield inflationary … エキサイトウーマン チコWeb17 feb. 2024 · Specifically, we study two models of rapid-turn multifield inflation, motivated in part by the de Sitter swampland conjecture, that are distinguished by the curvature of … エキサイトウーマン漫画