Small field inflation
WebbOn the other hand, in small-field inflation, where the coarse graining of spacetime into causally connected patches is less refined, it becomes less probable for the right initial condition to be met and consequently for inflation to begin [7]. A realization of this is the overshoot problem in hilltop inflation (or in general, inflection point WebbWe study small field models of inflation, which, against previous expectations, yield significant Gravitational Wave (GW) signal while reproducing other measured observable quantities in the...
Small field inflation
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Webb25 aug. 2024 · Inflation in RS2 model generally predicts smaller scalar spectral indices and larger tensor-to-scalar ratios compared to standard inflation. However, large tensor-to … WebbFör 1 dag sedan · KUALA LUMPUR: Maybank Investment Bank (Maybank IB) has expanded its market coverage with the issuance of structured warrants over stocks listed on the New York Stock Exchange (NYSE), making it ...
Webb10 sep. 2024 · We revisit the renormalizable polynomial inflection point model of inflation, focusing on the small field scenario which can be treated fully analytically. In particular, … Webb4 apr. 2024 · All single-field inflationary models invoke varying degrees of tuning in order to account for cosmological observations. Mechanisms that generate primordial black holes (PBHs) from enhancement of primordial power at small scales posit inflationary potentials that transiently break scale invariance and possibly adiabaticity over a range of modes.
Webb6 okt. 2024 · We present a minimal UV complete framework to embed inflation and dark matter by extending the standard model with a singlet real scalar field (the inflaton) and … Webb16 dec. 2024 · We focus on the behaviours of small field of an arctangent potential form, in Randall–Sundrum II braneworld. Within this framework, there is only one brane with positive tension while the second membrane is sent to infinity, and the configuration the model allows to localize the gravity on the curvature of the bulk. In that context, we …
Webb11 aug. 2024 · It is shown that in this class of models the symmetry structure leads to both large and small field inflationary trajectories within a single modular inflation model. The …
Webb19 sep. 2024 · In the case of small field inflation there is a small window in parameter space of typical potentials such as where a phase of eternal accelerated expansion … disneyland california screamin on rideWebb1 juni 2012 · We argue that for small field inflation, minimizing fine tuning requires low energy supersymmetry and a tightly constrained structure. Hybrid inflation is almost an … cowpig menuWebbOur axion potential can lead to the small field inflation with a small tensor-to-scalar ratio, and a typical reheating temperature can be as low as GeV. We study an axion inflation … cow pig rooster sheep dog frog horse duckWebbA scalar field having the Coleman-Weinberg type effective potential arises in various contexts of particle physics and serves as a useful framework for discussing cosmic … disneyland california vs california adventureWebb6 aug. 2024 · In this work, we perform this integration and we show that there is a region of parameter space where the effective supergravity realises our proposal of small field inflation from supersymmetry... cow pillow caseWebb21 feb. 2024 · Reheating via the inflation sector decays to right-handed neutrinos is considered. An upper bound on the reheating temperature T R ≲2×1011(1×1013) GeV, for large (small) field inflation, will suppress contributions from one-loop quantum corrections to the inflation potential. cow pillow coversWebb12 sep. 2016 · A bstract We consider “new inflation” inflationary models at small fields, embedded in minimal \mathcal {N} = 1 supergravity with a single chiral superfield. Imposing a period of inflation compatible with experiment severely restricts possible models, classified in perturbation theory. disneyland california reopening date 2021