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Inflation
TheInflation modern cosmology introduces a brief “episode” of inflation into the development of the universe to solve fundamental problems of the...
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Inflation
Inflation is the period of exponential expansion of the universe, which gives a natural explanation for the observed flatness and solves the problem...
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Higgs inflation at the pole
We propose a novel possibility for Higgs inflation where the perturbative unitarity below the Planck scale is ensured by construction and the...
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Hybrid inflation from supersymmetry breaking
We extend a recently proposed framework, dubbed inflation by supersymmetry breaking, to hybrid inflation by introducing a waterfall field that allows...
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Starobinsky inflation from string theory?
Starobinsky inflation is currently one of the best models concerning agreement with cosmological data. Despite this observational success, it is...
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Inflation and Braneworlds
An introductory review of the Randall-Sundrum type II braneworld scenario is presented, with emphasis on the relationship between the density and...
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Moduli inflation from modular flavor symmetries
We study slow-roll inflation model controlled by the modular flavor symmetry. In the model, the modulus field plays a role of inflaton and the...
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Quantum corrections to Higgs inflation in Einstein-Cartan gravity
This paper studies the quantum corrections to the Higgs inflation model in the context of the Einstein-Cartan (E-C) gravity in the large- N limit with N ...
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Kinetically stabilized inflation
In this work, we propose a string-inspired two fields inflation model to address the fine-tuning problem that the standard inflation model suffers....
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Universe inflation and nonlinear electrodynamics
We analyse the inflation of the universe when the source of gravity is electromagnetic fields obeying nonlinear electrodynamics, with two parameters...
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Dynamical inflation stimulated cogenesis
We propose a minimal setup that realises dynamical inflection point inflation, and, using the same field content, generates neutrino masses, a baryon...
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Supersymmetric baryogenesis in a hybrid inflation model
We study baryogenesis in a hybrid inflation model which is embedded to the minimal supersymmetric model with right-handed neutrinos. Inflation is...
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Stringy constraints on primordial electromagnetic fields in axion inflation
We study primordial electromagnetic fields in effective actions of string theory. In contrast to a conventional scenario of producing primordial...
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Second-order corrections to Starobinsky inflation
Higher-order theories of gravity are extensions to general relativity (GR) motivated mainly by high-energy physics searching for GR ultraviolet...
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Cosmological perturbations from five-dimensional inflation
It was recently proposed that five-dimensional inflation can relate the causal size of the observable universe to the present weakness of...
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Multifield positivity bounds for inflation
Positivity bounds represent nontrivial limitations on effective field theories (EFTs) if those EFTs are to be completed into a Lorentz-invariant,...
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Generalized hilltop inflation
We study a generalized version of hilltop inflation where the standard hilltop potential has been raised to a power and we allow fractional numbers...
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Inflation correlators with multiple massive exchanges
The most general tree-level boundary correlation functions of quantum fields in inflationary spacetime involve multiple exchanges of massive states...
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Peccei-Quinn hybrid natural inflation
Hidden strong dynamics can naturally generate a coupling responsible for a waterfall phase transition in hybrid natural inflation, where...
