Initial conditions problem in cosmological inflation revisited

Garfinkle, David; Ijjas, Anna; Steinhardt, Paul J.

doi:10.1016/j.physletb.2023.138028

Title: Initial conditions problem in cosmological inflation revisited

Abstract

We present first results from a novel numerical relativity code based on a tetrad formulation of the Einstein-scalar field equations combined with recently introduced gauge/frame invariant diagnostics indicating that inflation does not solve the homogeneity and isotropy problem beginning from generic initial conditions following a big bang.

Authors:

Garfinkle, David; Ijjas, Anna;

Publication Date:: Tue Aug 01 00:00:00 EDT 2023

Research Org.:: Princeton Univ., NJ (United States)

Sponsoring Org.:: USDOE; National Science Foundation (NSF); Simons Foundation

OSTI Identifier:: 2067670

Alternate Identifier(s):: OSTI ID: 1997836

Grant/Contract Number:: 654561; DEFG02-91ER40671; SC0007968; PHY-2102914; 947319; FG02-91ER40671

Resource Type:: Published Article

Journal Name:: Physics Letters. B

Additional Journal Information:: Journal Name: Physics Letters. B Journal Volume: 843 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Cosmic inflation; Initial conditions problem; Numerical relativity

Citation Formats


                    Garfinkle, David, Ijjas, Anna, and Steinhardt, Paul J. Initial conditions problem in cosmological inflation revisited.  Netherlands: N. p., 2023. 
Web.  doi:10.1016/j.physletb.2023.138028.

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                    Garfinkle, David, Ijjas, Anna, & Steinhardt, Paul J. Initial conditions problem in cosmological inflation revisited.  Netherlands.  https://doi.org/10.1016/j.physletb.2023.138028

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                    Garfinkle, David, Ijjas, Anna, and Steinhardt, Paul J. Tue .  
"Initial conditions problem in cosmological inflation revisited".  Netherlands.  https://doi.org/10.1016/j.physletb.2023.138028.

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@article{osti_2067670,

  title        = {Initial conditions problem in cosmological inflation revisited},

  author       = {Garfinkle, David and Ijjas, Anna and Steinhardt, Paul J.},

  abstractNote = {We present first results from a novel numerical relativity code based on a tetrad formulation of the Einstein-scalar field equations combined with recently introduced gauge/frame invariant diagnostics indicating that inflation does not solve the homogeneity and isotropy problem beginning from generic initial conditions following a big bang.},

  doi          = {10.1016/j.physletb.2023.138028},

  journal      = {Physics Letters. B},

  number       = C,

  volume       = 843,

  place        = {Netherlands},

  year         = {Tue Aug 01 00:00:00 EDT 2023},

  month        = {Tue Aug 01 00:00:00 EDT 2023}

}

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Works referenced in this record:

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Title: Initial conditions problem in cosmological inflation revisited

Abstract

Citation Formats

Fluctuations in the New Inflationary Universe journal, October 1982

Reine Infinitesimalgeometrie journal, September 1918

Birth of inflationary universes journal, June 1983

Prescription for successful new inflation journal, May 1984

The development of irregularities in a single bubble inflationary universe journal, September 1982

The effects of multiple modes and reduced symmetry on the rapidity and robustness of slow contraction journal, September 2021

Supersmoothing through slow contraction journal, September 2020

Inhomogeneous preinflation across Hubble scales in full general relativity journal, April 2021

A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems journal, February 1982

Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations journal, November 1982

Numerical Relativity as a New Tool for Fundamental Cosmology journal, March 2022

Spontaneous creation of almost scale-free density perturbations in an inflationary universe journal, August 1983

Gravitational Degrees of Freedom and the Initial-Value Problem journal, June 1971

Chaotic inflation journal, September 1983

Difficulties with Inflationary Cosmology journal, December 1989

Inflationary universe: A possible solution to the horizon and flatness problems journal, January 1981

Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking journal, April 1982

Evolution to a smooth universe in an ekpyrotic contracting phase with w > 1 journal, October 2008

Fluctuations in the New Inflationary Universe
journal, October 1982

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journal, September 1918

Birth of inflationary universes
journal, June 1983

Prescription for successful new inflation
journal, May 1984

The development of irregularities in a single bubble inflationary universe
journal, September 1982

The effects of multiple modes and reduced symmetry on the rapidity and robustness of slow contraction
journal, September 2021

Supersmoothing through slow contraction
journal, September 2020

Inhomogeneous preinflation across Hubble scales in full general relativity
journal, April 2021

A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
journal, February 1982

Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
journal, November 1982

Numerical Relativity as a New Tool for Fundamental Cosmology
journal, March 2022

Spontaneous creation of almost scale-free density perturbations in an inflationary universe
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Gravitational Degrees of Freedom and the Initial-Value Problem
journal, June 1971

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journal, January 1981

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journal, April 1982

Evolution to a smooth universe in an ekpyrotic contracting phase with $w > 1$
journal, October 2008