Sequestered Inflation

Andrei Linde; Renata Kallosh; Timm Wrase; Yusuke Yamada

Sequestered Inflation

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arxiv 2108.08491 v2 pith:7DKERV5H submitted 2021-08-19 hep-th astro-ph.COgr-qchep-ph

Sequestered Inflation

Renata Kallosh , Andrei Linde , Timm Wrase , Yusuke Yamada This is my paper

classification hep-th astro-ph.COgr-qchep-ph

keywords stepdirectionsflatinflationinflationaryminkowskimodelsphenomenology

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We construct supergravity models allowing to sequester the phenomenology of inflation from the Planckian energy scale physics. The procedure consists of two steps: At Step I we study supergravity models, which might be associated with string theory or M-theory, and have supersymmetric Minkowski vacua with flat directions. At Step II we uplift these flat directions to inflationary plateau potentials. We find certain conditions which ensure that the superheavy fields involved in the stabilization of the Minkowski vacua at Step I are completely decoupled from the inflationary phenomenology.

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Gravitational waves from self-resonance during reheating with a quantum-corrected inflaton potential
hep-ph 2026-07 conditional novelty 6.0

A Coleman-Weinberg correction that cancels the inflaton's quadratic term at the potential minimum triggers quartic self-resonance and a peaked GW background at 10^8-10^10 Hz; a negative quadratic term instead gives a ...