On the graceful exit problem in warm inflation

Abstract

A seemingly simple question, how does warm inflation exit gracefully?, has a more complex answer than in a cold paradigm. It has been highlighted here that whether warm inflation exits gracefully depends on three independent choices: The form of the potential, the choice of the warm inflation model (i.e., on the form of its dissipative coefficient) and the regime, of weak or strong dissipation, characterizing the warm inflation dynamics. Generic conditions on slow-roll parameters and several constraints on the different model parameters required for warm inflation to exit gracefully are derived.

arXiv comment8 pages, 4 figures, double column, v2: 12 pages, 5 figures, version matched with the published version in PRD

References in corpus (53)

• Planck 2018 results. X. Constraints on inflation
• Warm Inflation
• Distance and de Sitter Conjectures on the Swampland
• Bounds on Slow Roll and the de Sitter Swampland
• De Sitter Space and the Swampland
• Warm Inflation and its Microphysical Basis
• Strong Dissipative Behavior in Quantum Field Theory
• Microphysical Approach to Nonequilibrium Dynamics of Quantum Fields
• Warm Little Inflaton
• Warm inflation model building
• The importance of being warm (during inflation)
• Dissipation coefficients from scalar and fermion quantum field interactions
• Is Warm Inflation Possible?
• General dissipation coefficient in low-temperature warm inflation
• Power spectrum for inflation models with quantum and thermal noises
• Warm inflation as a way out of the swampland
• Density fluctuations from warm inflation
• The zoo plot meets the swampland: mutual (in)consistency of single-field inflation, string conjectures, and cosmological data
• Shear viscous effects on the primordial power spectrum from warm inflation
• Warm inflation dissipative effects: predictions and constraints from the Planck data
• Warm Inflation in the light of Swampland Criteria
• Minimal Warm Inflation
• On the consistency of warm inflation
• A note on Single-field Inflation and the Swampland Criteria
• Cosmological fluctuations of a random field and radiation fluid
• Warm Inflation with a General Form of the Dissipative Coefficient
• Towards a reliable effective field theory of inflation
• Distance, de Sitter and Trans-Planckian Censorship conjectures: the status quo of Warm Inflation
• Warm brane inflation with an exponential potential: A consistent realization away from the swampland
• Warm baryogenesis
• Swampland, Axions and Minimal Warm Inflation
• Observational implications of mattergenesis during inflation
• Trans-Planckian censorship and other swampland bothers addressed in warm inflation
• On the consistency of warm inflation in the presence of viscosity
• Runaway potentials in warm inflation satisfying the swampland conjectures
• Observational Constraints on Monomial Warm Inflation
• General dissipative coefficient in warm intermediate and logamediate inflation
• Stability analysis for the background equations for inflation with dissipation and in a viscous radiation bath
• Unified early and late Universe cosmology through dissipative effects in steep quintessential inflation potential models
• General dissipative coefficient in warm intermediate inflation in loop quantum cosmology in light of Planck and BICEP2
• Warm inflation within a supersymmetric distributed mass model
• Fluctuation-dissipation dynamics of cosmological scalar fields
• Identifying Universality in Warm Inflation
• Dynamics of warm power-law plateau inflation with a generalized inflaton decay rate: predicctions and constraints after Planck 2015
• The role of fluctuation-dissipation dynamics in setting initial conditions for inflation
• Gravitino cosmology in supersymmetric warm inflation
• Role of trans-Planckian modes in cosmology
• Gravitational wave from warm inflation
• Impact of generalized dissipative coefficient on warm inflationary dynamics in the light of latest Planck data
• Noncanonical warm inflation: a model with a general Lagrangian density
• The gravitino problem in supersymmetric warm inflation
• Non-Gaussianity in a general kind noncanonical warm inflation
• Consistency of a kind of general noncanonical warm inflation

Cited by in corpus (18)

• Recent developments in warm inflation
• Runaway potentials in warm inflation satisfying the swampland conjectures
• The warm inflation story
• Gravity Waves and Primordial Black Holes in Scalar Warm Little Inflation
• Running and running of the running of the scalar spectral index in warm inflation
• Dirac-Born-Infeld warm inflation realization in the strong dissipation regime
• Warm Inflation, Neutrinos and Dark matter: a minimal extension of the Standard Model
• A generalized method of constraining Warm Inflation with CMB data
• Embedding Ultra slow-roll inflaton dynamics in Warm Inflation
• Salvaging Power-Law Inflation through Warming
• Reconstruction of inflationary scenarios in non-conservative unimodular gravity
• Warm multi natural inflation
• Reassessing constant-roll Warm Inflation
• Purely gravitational dark matter production in warm inflation
• Is warm inflation quasi-stable?
• Witten-O'Raifeartaigh potential revisited in the context of Warm Inflation
• On the role of dissipative effects in the quantum gravitational onset of warm Starobinsky inflation in a closed universe
• Warm inflation in Weyl geometric gravity