4.7 Article

Large deviations in the early Universe

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Astronomy & Astrophysics

The matter density PDF for modified gravity and dark energy with Large Deviations Theory

Matteo Cataneo et al.

Summary: In this study, an analytical description of the probability distribution function (PDF) of the smoothed 3D matter density field for modified gravity and dark energy is presented. The approach is based on Large Deviations Theory and is applicable to various extensions of the standard cosmology. The results show high accuracy in the mildly non-linear regime and demonstrate the power of combining measurements of the 3D matter PDF with the 3D matter power spectrum.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Physics, Particles & Fields

The hand-made tail: non-perturbative tails from multifield inflation

Ana Achucarro et al.

Summary: This study uses the stochastic inflation formalism to investigate the non-perturbative effects of multi-field fluctuations on the statistical properties of the primordial curvature field, revealing that enhanced non-Gaussian tails are a common feature of slow-roll inflation with additional degrees of freedom.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Article Astronomy & Astrophysics

Highly non-Gaussian tails and primordial black holes from single-field inflation

Yi-Fu Cai et al.

Summary: This paper investigates the relationship between deviations from Gaussian statistics in primordial perturbations and non-perturbative effects. It presents specific examples where the tail of the distribution becomes highly non-Gaussian despite remaining almost Gaussian in the perturbative regime. The study reveals the rich phenomenology of non-Gaussian tails, which has been overlooked in conventional analyses.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2022)

Article Astronomy & Astrophysics

Rare events are nonperturbative: Primordial black holes from heavy-tailed distributions

Sina Hooshangi et al.

Summary: This paper investigates the limitations of perturbative treatment in predicting the abundance of primordial black holes (PBHs) and proposes a nonperturbative estimation method, called the SN formalism, for the tail of the probability distribution function (PDF). The results show that the SN formalism can provide more accurate predictions on the tail behavior, leading to a significant enhancement of PBH formation probability compared to perturbation theory.

PHYSICS LETTERS B (2022)

Article Physics, Particles & Fields

Manifestly causal in-in perturbation theory about the interacting vacuum

Matthew Baumgart et al.

Summary: This article addresses a conflict between two important aspects of In-In perturbation theory and introduces a modified iE prescription that preserves exact unitarity while agreeing with both aspects.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Astronomy & Astrophysics

A manifestly covariant theory of multifield stochastic inflation in phase space: solving the discretisation ambiguity in stochastic inflation

Lucas Pinol et al.

Summary: This paper addresses the issues in stochastic inflation theory by using Stratonovich discretization satisfying general covariance and identifying the quantum nature of fluctuating fields leading to the existence of preferred frame defining independent stochastic noises. Physically equivalent Ito-Langevin equations are derived which are manifestly covariant and well suited for numerical computations.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

Article Astronomy & Astrophysics

Probability distribution function of the aperture mass field with large deviation theory

Alexandre Barthelemy et al.

Summary: A theoretical model for the one-point statistics of the aperture mass (Map) in tomographic cosmic shear surveys is developed using the large deviation principle applied to the projected matter density field and angular aperture masses. The nulling procedure based on the BNT transform can create observables independent of small-scale modes, making predictions for the probability distribution function of the observable very accurate. However, comparisons with simulations show inconsistent results, indicating the need for more precise numerical developments for refined observables in weak-lensing surveys like Euclid.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Physics, Particles & Fields

Extremal correlators and random matrix theory

Alba Grassi et al.

Summary: The study focuses on the correlation functions of Coulomb branch operators in four-dimensional N = 2 Superconformal Field Theories, particularly on rank-one theories. It is shown that the large charge limit of extremal correlators can be captured by a dual description of a chiral random matrix model of the Wishart-Laguerre type. This provides an analytic understanding of physics in specific excited states.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Astronomy & Astrophysics

Beyond perturbation theory in inflation

Marco Celoria et al.

Summary: This paper demonstrates that non-perturbative effects of non-Gaussian perturbations in inflationary cosmology can be addressed through a semiclassical treatment. Numerical and analytical methods reveal a clear non-perturbative dependence in the tail of the probability distribution.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

Review Physics, Multidisciplinary

Selected topics in the large quantum number expansion

Luis Alvarez-Gaume et al.

Summary: This review explores quantum field theories and conformal field theories with global symmetries in the large charge limit, revealing that at low energies, the sectors with large charge can be described using a hybrid form of Goldstone's theorem. The associated effective field theory in the infrared enables computation of anomalous dimensions and operator product expansion coefficients, offering a well-defined expansion in inverse powers of the global charge.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2021)

Article Astronomy & Astrophysics

Markovian dynamics in de Sitter

Mehrdad Mirbabayi

Summary: By tracing out the environment systematically, we demonstrated the thermalization of out-of-equilibrium states of a light scalar field in a Markovian fashion as perceived by realistic observers. Using the results of Starobinsky and Yokoyama as a case study, we calculated the O(lambda) correction to the relaxation exponents of the lambda phi(4) theory.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

Article Physics, Particles & Fields

Stochastic Inflation at NNLO

Timothy Cohen et al.

Summary: Stochastic Inflation is an important framework for understanding the physics of de Sitter space and the phenomenology of inflation. This paper calculates the next-to-next-to-leading order (NNLO) corrections to Stochastic Inflation using Soft de Sitter Effective Theory (SdSET). The leading impact of non-Gaussian quantum fluctuations appears at NNLO, which is presented here for the first time.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Astronomy & Astrophysics

Non-Gaussian CMB and LSS statistics beyond polyspectra

Gonzalo A. Palma et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

Article Astronomy & Astrophysics

A nulling strategy for modelling lensing convergence in cones with large deviation theory

A. Barthelemy et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Feynman diagrams and the large charge expansion in 3-ε dimensions

Gil Badel et al.

PHYSICS LETTERS B (2020)

Article Astronomy & Astrophysics

Keeping an eye on DBI: power-counting for small-cs cosmology

Ivana Babic et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

Article Astronomy & Astrophysics

Post-Born corrections to the one-point statistics of (CMB) lensing convergence obtained via large deviation theory

Alexandre Barthelemy et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Review Physics, Nuclear

Primordial Black Holes as Dark Matter: Recent Developments

Bernard Carr et al.

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 70 (2020)

Article Physics, Particles & Fields

De Sitter diagrammar and the resummation of time

Matthew Baumgart et al.

JOURNAL OF HIGH ENERGY PHYSICS (2020)

Article Astronomy & Astrophysics

Inflation in motion: unitarity constraints in effective field theories with (spontaneously) broken Lorentz symmetry

Tanguy Grall et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

Article Physics, Multidisciplinary

Seeding Primordial Black Holes in Multifield Inflation

Gonzalo A. Palma et al.

PHYSICAL REVIEW LETTERS (2020)

Article Astronomy & Astrophysics

Infrared dynamics of a light scalar field in de Sitter

Mehrdad Mirbabayi

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

Article Physics, Particles & Fields

Soft de Sitter Effective Theory

Timothy Cohen et al.

JOURNAL OF HIGH ENERGY PHYSICS (2020)

Article Astronomy & Astrophysics

Non-perturbative probability distribution function for cosmological counts in cells

Mikhail M. Ivanov et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2019)

Article Physics, Multidisciplinary

Eternal Inflation and the Refined Swampland Conjecture

William H. Kinney

PHYSICAL REVIEW LETTERS (2019)

Article Astronomy & Astrophysics

Scalar correlation functions in de Sitter space from the stochastic spectral expansion

Tommi Markkanen et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2019)

Article Physics, Particles & Fields

Stochastic eternal inflation is in the swampland

Suddhasattwa Brahma et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Article Physics, Particles & Fields

The epsilon expansion meets semiclassics

Gil Badel et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Article Astronomy & Astrophysics

Eternal inflation and swampland conjectures

Hiroki Matsui et al.

PHYSICAL REVIEW D (2019)

Article Astronomy & Astrophysics

Higher N-point function data analysis techniques for heavy particle production and WMAP results

Moritz Munchmeyer et al.

PHYSICAL REVIEW D (2019)

Article Astronomy & Astrophysics

Primordial black holes from inflation and non-Gaussianity

G. Franciolini et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018)

Article Astronomy & Astrophysics

Power-counting during single-field slow-roll inflation

Peter Adshead et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018)

Article Astronomy & Astrophysics

Landscape tomography through primordial non-Gaussianity

Xingang Chen et al.

PHYSICAL REVIEW D (2018)

Article Astronomy & Astrophysics

Productive interactions: heavy particles and non-Gaussianity

Raphael Flauger et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017)

Article Astronomy & Astrophysics

Cumulative effects in inflation with ultra-light entropy modes

Ana Achucarro et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017)

Article Astronomy & Astrophysics

Squeezed bispectrum in the δN formalism: local observer effect in field space

Yuichiro Tada et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017)

Article Astronomy & Astrophysics

Back in the saddle: large-deviation statistics of the cosmic log-density field

C. Uhlemann et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Physics, Particles & Fields

Open EFTs, IR effects & late-time resummations: systematic corrections in stochastic inflation

C. P. Burgess et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Article Astronomy & Astrophysics

Signs of analyticity in single-field inflation

Daniel Baumann et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

Large deviation principle at play in large scale structure cosmology

Francis Bernardeau et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

B-modes and the nature of inflation

Daniel Baumann et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2015)

Article Physics, Particles & Fields

On the CFT operator spectrum at largeg lobal charge

Simeon Hellerman et al.

JOURNAL OF HIGH ENERGY PHYSICS (2015)

Correction Astronomy & Astrophysics

Threshold of primordial black hole formation (vol 88, 084051, 2013)

Tomohiro Harada et al.

PHYSICAL REVIEW D (2014)

Article Astronomy & Astrophysics

On squeezed limits in single-field inflation. Part I

Raphael Flauger et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2013)

Article Astronomy & Astrophysics

Threshold of primordial black hole formation

Tomohiro Harada et al.

PHYSICAL REVIEW D (2013)

Article Astronomy & Astrophysics

A field range bound for general single-field inflation

Daniel Baumann et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2012)

Article Astronomy & Astrophysics

Conformal symmetries of adiabatic modes in cosmology

Kurt Hinterbichler et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2012)

Article Astronomy & Astrophysics

Conformal consistency relations for single-field inflation

Paolo Creminelli et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2012)

Article Astronomy & Astrophysics

Equilateral non-gaussianity and new physics on the horizon

Daniel Baumann et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2011)

Article Astronomy & Astrophysics

Separate universes do not constrain primordial black hole formation

Michael Kopp et al.

PHYSICAL REVIEW D (2011)

Article Astronomy & Astrophysics

Local non-Gaussianity from inflation

David Wands

CLASSICAL AND QUANTUM GRAVITY (2010)

Article Astronomy & Astrophysics

Super-Hubble de Sitter fluctuations and the dynamical RG

C. P. Burgess et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2010)

Article Astronomy & Astrophysics

Stochastic growth of quantum fluctuations during slow-roll inflation

F. Finelli et al.

PHYSICAL REVIEW D (2010)

Review Astronomy & Astrophysics

A parton picture of de Sitter space during slow-roll inflation

David Seery

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2009)

Article Astronomy & Astrophysics

Structure of correlation functions in single-field inflation

Sarah Shandera

PHYSICAL REVIEW D (2009)

Article Physics, Multidisciplinary

Non-Gaussian Curvature Spikes from Chaotic Billiards in Inflation Preheating

J. Richard Bond et al.

PHYSICAL REVIEW LETTERS (2009)

Review Physics, Multidisciplinary

The large deviation approach to statistical mechanics

Hugo Touchette

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2009)

Article Statistics & Probability

Large deviations

S. R. S. Varadhan

ANNALS OF PROBABILITY (2008)

Article Astronomy & Astrophysics

Simple bounds from the perturbative regime of inflation

Louis Leblond et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2008)

Article Physics, Particles & Fields

The phase transition to eternal inflation

Paolo Creminelli et al.

JOURNAL OF HIGH ENERGY PHYSICS (2008)

Article Physics, Particles & Fields

The effective field theory of inflation

Clifford Cheung et al.

JOURNAL OF HIGH ENERGY PHYSICS (2008)

Article Astronomy & Astrophysics

One-loop corrections to a scalar field during inflation

David Seery

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2007)

Article Physics, Particles & Fields

A measure of de Sitter entropy and eternal inflation

Nima Arkani-Hamed et al.

JOURNAL OF HIGH ENERGY PHYSICS (2007)

Review Astronomy & Astrophysics

Observational signatures and non-Gaussianities of general single-field inflation

Xingang Chen et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2007)

Article Physics, Particles & Fields

Starting the Universe: stable violation of the null energy condition and non-standard cosmologies

Paolo Creminelli et al.

JOURNAL OF HIGH ENERGY PHYSICS (2006)

Article Astronomy & Astrophysics

Eternal inflation: The inside story

Raphael Bousso et al.

PHYSICAL REVIEW D (2006)

Article Physics, Particles & Fields

A leading log approximation for inflationary quantum field theory

RP Woodard

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS (2005)

Article Physics, Particles & Fields

Stochastic quantum gravitational inflation

NC Tsamis et al.

NUCLEAR PHYSICS B (2005)

Article Astronomy & Astrophysics

Primordial non-Gaussianities from multiple-field inflation

D Seery et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2005)

Article Astronomy & Astrophysics

A single-field consistency relation for the three-point function

P Creminelli et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2004)

Article Physics, Particles & Fields

Non-gaussian features of primordial fluctuations in single field inflationary models

J Maldacena

JOURNAL OF HIGH ENERGY PHYSICS (2003)

Article Astronomy & Astrophysics

Non-Gaussianity in multifield inflation

F Bernardeau et al.

PHYSICAL REVIEW D (2002)

Article Astronomy & Astrophysics

New approach to the evolution of cosmological perturbations on large scales

D Wands et al.

PHYSICAL REVIEW D (2000)