High Energy Physics - Phenomenology · arXiv:1210.7975 v2 · submitted 30 Oct 2012
Warm Inflection
The paper says
“We show that this can be significantly alleviated by the inclusion of dissipative effects that damp the inflaton's motion and produce a nearly-thermal radiation bath.”
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The paper
Abstract
While ubiquitous in supersymmetric and string theory models, inflationary scenarios near an inflection point in the scalar potential generically require a severe fine-tuning of a priori unrelated supersymmetry breaking effects. We show that this can be significantly alleviated by the inclusion of dissipative effects that damp the inflaton's motion and produce a nearly-thermal radiation bath. We focus on the case where the slow-rolling inflaton directly excites heavy virtual modes that then decay into light degrees of freedom, although our main qualitative results should apply in other regimes. Furthermore, our analysis shows that the minimum amount of dissipation required to keep the temperature of the radiation bath above the Hubble rate during inflation is largely independent of the degree of flatness of the potential, although it depends on the field value at the inflection point. We then discuss the relevance of this result to warm inflation model building.
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abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 0.99
What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.88 · human participants 0.01 · controlled comparison 0.07 · randomized assignment 0.01 · states quantitative result 0.14 · compares with prior results 0.36 · mentions code or data availability 0.01
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v2). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| While ubiquitous in supersymmetric and string theory models, inflationary scenarios near an inflection point in the scalar potential generically require a severe fine-tuning of a priori unrelated supersymmetry breaking effects. | background 0.93 | 0.07 | 0.05 | asserted 0.98 |
| We show that this can be significantly alleviated by the inclusion of dissipative effects that damp the inflaton's motion and produce a nearly-thermal radiation bath. | contribution 0.55 | 0.92 | 0.78 | asserted 0.99 |
| We focus on the case where the slow-rolling inflaton directly excites heavy virtual modes that then decay into light degrees of freedom, although our main qualitative results should apply in other regimes. | method 0.53 | 0.62 | 0.06 | asserted 0.85 |
| Furthermore, our analysis shows that the minimum amount of dissipation required to keep the temperature of the radiation bath above the Hubble rate during inflation is largely independent of the degree of flatness of the potential, although it depends on the field value at the inflection point. | result 1.00 | 0.95 | 0.34 | asserted 1.00 |
| We then discuss the relevance of this result to warm inflation model building. | interpretation 0.61 | 0.58 | 0.04 | unclear 0.95 |
What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.97
What was examined, and what was not
Sources read
- arXiv listing abstract v2
Not examined
- full text
- figures and tables
- references and citing sentences
- relations to other papers
Levels run
- P abstract
Not run
- S sections
- T body sentences
- C citations
- R cross-paper relations
How the labels were made
Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,375 input tokens, $0.0002 reported.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
Cited by 4 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
- The importance of being warm (during inflation) hep-ph · Jul 2013
- Observational implications of mattergenesis during inflation astro-ph.CO · Apr 2014
- Power spectrum for inflation models with quantum and thermal noises astro-ph.CO · Feb 2013
- Electroweak Vacuum Stability in light of BICEP2 hep-ph · Mar 2014
How the literature uses it
15 arXiv papers cite this in 15 sentences
Papers citing it · 12 sentences without a confident label
Cites it as support 1 paper
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In this example, a large number of waterfall fields was considered, which is generically required in order to keep the system in the warm regime with the form of the dissipation coefficient considered, as observed in [ref] .
Delaying the waterfall transition in warm hybrid inflation · Warm regime · 0.96
Cites it as background 2 papers
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This scenario constitutes the first successful implementation of warm inflation within a concrete extension of the SM, building upon a large body of work over the past decades in terms of understanding the intricacies of non-equilibrium processes during inflation [ref] , model building [ref] and observational predictions [ref] .
Warm Inflation, Neutrinos and Dark matter: a minimal extension of the Standard Model · Introduction · 0.90
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There are various other features of warm inflation that have been explored in the literature [ref] .
Dynamical and observational constraints on the Warm Little Inflaton scenario · Introduction · 0.97
What it cites · 36 sentences without a confident label
Uses data or values from 1 paper
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We can use the WMAP 7-year results giving a power spectrum with an amplitude $𝒫_ℛ=(2.43±0.11)×10^-9$ and a spectral index $n_s =0.967±0.014$ [ref] to determine $V_0$ and $ϕ_*$.
Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation · Warm inflation near an inflection point · 1.00
Compares with 1 paper
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The minimum value of $C_ϕ≳10^6$ obtained for $g_*=100$ is of the same order as that obtained for other forms of the inflaton potential, such as monomial or hybrid models [ref] , which implies large couplings and field multiplicities, so one may ask whether there is any gain from the model building perspective in trading a large fine-tuning in the parameters of the potential for large couplings and a large number of fields.
Warm inflation model building · Summary and future prospects · 0.99
Cites as background 10 papers
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Most scenarios considered in the literature so far in the context of quantum field theory [ref] , as well as phenomenological models [ref] consider the case where a nearly-thermal bath of radiation is produced concurrently with accelerated expansion from the adiabatic motion of the inflaton field, which may be analyzed within the framework of linear response theory.
On the consistency of warm inflation · Introduction · 0.93
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Most scenarios considered in the literature so far in the context of quantum field theory [ref] , as well as phenomenological models [ref] consider the case where a nearly-thermal bath of radiation is produced concurrently with accelerated expansion from the adiabatic motion of the inflaton field, which may be analyzed within the framework of linear response theory.
Warm Inflation and its Microphysical Basis · Introduction · 0.93
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Most scenarios considered in the literature so far in the context of quantum field theory [ref] , as well as phenomenological models [ref] consider the case where a nearly-thermal bath of radiation is produced concurrently with accelerated expansion from the adiabatic motion of the inflaton field, which may be analyzed within the framework of linear response theory.
General dissipation coefficient in low-temperature warm inflation · Introduction · 0.93
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