Quantum cosmic no-hair theorem and inflation

Kaloper, Nemanja; Scargill, James

doi:10.1103/PhysRevD.99.103514

Title: Quantum cosmic no-hair theorem and inflation

Abstract

We consider implications of the quantum extension of the inflationary no-hair theorem. We show that when the quantum state of inflation is picked to ensure the validity of the effective field theory of fluctuations, it takes only O(10) e-folds of inflation to erase the effects of the initial distortions on the inflationary observables. Thus, the Bunch-Davies vacuum is a very strong quantum attractor during inflation. We also consider bouncing universes, where the initial conditions seem to linger much longer and the quantum “balding” by evolution appears to be less efficient.

Authors:: Kaloper, Nemanja; Scargill, James

Publication Date:: Mon May 13 00:00:00 EDT 2019

Research Org.:: Univ. of California, Davis, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1512331

Alternate Identifier(s):: OSTI ID: 1611319; OSTI ID: 1961847

Grant/Contract Number:: SC0009999; SC0019081

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 99 Journal Issue: 10; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Astronomy & Astrophysics; Physics; Inflation; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Cosmic inflation

Citation Formats


                    Kaloper, Nemanja, and Scargill, James. Quantum cosmic no-hair theorem and inflation.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.99.103514.

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                    Kaloper, Nemanja, & Scargill, James. Quantum cosmic no-hair theorem and inflation.  United States.  https://doi.org/10.1103/PhysRevD.99.103514

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                    Kaloper, Nemanja, and Scargill, James. Mon .  
"Quantum cosmic no-hair theorem and inflation".  United States.  https://doi.org/10.1103/PhysRevD.99.103514.

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@article{osti_1512331,

  title        = {Quantum cosmic no-hair theorem and inflation},

  author       = {Kaloper, Nemanja and Scargill, James},

  abstractNote = {We consider implications of the quantum extension of the inflationary no-hair theorem. We show that when the quantum state of inflation is picked to ensure the validity of the effective field theory of fluctuations, it takes only O(10) e-folds of inflation to erase the effects of the initial distortions on the inflationary observables. Thus, the Bunch-Davies vacuum is a very strong quantum attractor during inflation. We also consider bouncing universes, where the initial conditions seem to linger much longer and the quantum “balding” by evolution appears to be less efficient.},

  doi          = {10.1103/PhysRevD.99.103514},

  journal      = {Physical Review D},

  number       = 10,

  volume       = 99,

  place        = {United States},

  year         = {Mon May 13 00:00:00 EDT 2019},

  month        = {Mon May 13 00:00:00 EDT 2019}

}

Copy to clipboard

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Title: Quantum cosmic no-hair theorem and inflation

Abstract

Citation Formats

Trans-Planckian particle creation in cosmology and ultrahigh energy cosmic rays journal, September 2002

CMB in open inflation journal, May 1999

Trans-Planckian problem of inflationary cosmology journal, May 2001

Infrared stability of de Sitter space: Loop corrections to scalar propagators journal, November 2010

Closed universes: their future evolution and final state* journal, September 1985

The closed-universe recollapse conjecture journal, December 1986

Quantum field theory in curved spacetime journal, August 1975

Inflation, holography, and the choice of vacuum in de Sitter space journal, July 2002

Towards the physical vacuum of cosmic inflation journal, September 2016

Pre-big-bang inflation requires fine-tuning journal, October 1997

Signatures of short distance physics in the cosmic microwave background journal, December 2002

Cosmological consequences of initial state entanglement journal, November 2014

Anisotropy in the chaotic inflationary universe journal, October 1986

Enhanced non-Gaussianity from excited initial states journal, May 2008

Are inflationary predictions sensitive to very high energy physics? journal, February 2003

Naturalness in cosmological initial conditions journal, September 2005

A Cyclic Model of the Universe journal, April 2002

On squeezed limits in single-field inflation. Part I journal, August 2013

Cosmology with negative potentials journal, July 2002

Initial Conditions for Inflation journal, November 2002

Pre-big-bang requires the universe to be exponentially large from the very beginning journal, January 1999

Inhomogeneous anisotropic cosmology journal, October 2016

Decoupling in an expanding universe: backreaction barely constrains short distance effects in the cosmic microwave background journal, February 2005

Reconciliation of high energy scale models of inflation with Planck journal, February 2014

Vacuum states in de Sitter space journal, December 1985

Beginning inflation in an inhomogeneous universe journal, September 2016

Is the Universe a Vacuum Fluctuation? journal, December 1973

Cosmological implications of quantum entanglement in the multiverse journal, December 2015

Note on inflation and trans-Planckian physics journal, July 2002

Bounds on generic high-energy physics modifications to the primordial power spectrum from back-reaction on the metric journal, August 2004

Observational implications of cosmological event horizons journal, October 2004

A critical review of classical bouncing cosmologies journal, April 2015

Observational consequences of a landscape journal, March 2006

On the initial condition of inflationary fluctuations journal, April 2016

Non-gaussian features of primordial fluctuations in single field inflationary models journal, May 2003

Scale invariance in expanding and contracting universes from two-field models journal, May 2007

Correlators, Feynman Diagrams, and Quantum No-hair in deSitter Spacetime journal, February 2013

Decoupling in an expanding universe: boundary RG-flow affects initial conditions for inflation journal, April 2004

Particle creation in de Sitter space journal, February 1985

Symmetry constraints in inflation, α-vacua, and the three point function journal, December 2016

New duality relating density perturbations in expanding and contracting Friedmann cosmologies journal, July 2004

Quantum Field Theory in De Sitter Space: Renormalization by Point-Splitting journal, March 1978

Trans-Planckian particle creation in cosmology and ultrahigh energy cosmic rays
journal, September 2002

CMB in open inflation
journal, May 1999

Trans-Planckian problem of inflationary cosmology
journal, May 2001

Infrared stability of de Sitter space: Loop corrections to scalar propagators
journal, November 2010

Closed universes: their future evolution and final state*
journal, September 1985

The closed-universe recollapse conjecture
journal, December 1986

Quantum field theory in curved spacetime
journal, August 1975

Inflation, holography, and the choice of vacuum in de Sitter space
journal, July 2002

Towards the physical vacuum of cosmic inflation
journal, September 2016

Pre-big-bang inflation requires fine-tuning
journal, October 1997

Signatures of short distance physics in the cosmic microwave background
journal, December 2002

Cosmological consequences of initial state entanglement
journal, November 2014

Anisotropy in the chaotic inflationary universe
journal, October 1986

Enhanced non-Gaussianity from excited initial states
journal, May 2008

Are inflationary predictions sensitive to very high energy physics?
journal, February 2003

Naturalness in cosmological initial conditions
journal, September 2005

A Cyclic Model of the Universe
journal, April 2002

On squeezed limits in single-field inflation. Part I
journal, August 2013

Cosmology with negative potentials
journal, July 2002

Initial Conditions for Inflation
journal, November 2002

Pre-big-bang requires the universe to be exponentially large from the very beginning
journal, January 1999

Inhomogeneous anisotropic cosmology
journal, October 2016

Decoupling in an expanding universe: backreaction barely constrains short distance effects in the cosmic microwave background
journal, February 2005

Reconciliation of high energy scale models of inflation with Planck
journal, February 2014

Vacuum states in de Sitter space
journal, December 1985

Beginning inflation in an inhomogeneous universe
journal, September 2016

Is the Universe a Vacuum Fluctuation?
journal, December 1973

Cosmological implications of quantum entanglement in the multiverse
journal, December 2015

Note on inflation and trans-Planckian physics
journal, July 2002

Bounds on generic high-energy physics modifications to the primordial power spectrum from back-reaction on the metric
journal, August 2004

Observational implications of cosmological event horizons
journal, October 2004

A critical review of classical bouncing cosmologies
journal, April 2015

Observational consequences of a landscape
journal, March 2006

On the initial condition of inflationary fluctuations
journal, April 2016

Non-gaussian features of primordial fluctuations in single field inflationary models
journal, May 2003

Scale invariance in expanding and contracting universes from two-field models
journal, May 2007

Correlators, Feynman Diagrams, and Quantum No-hair in deSitter Spacetime
journal, February 2013

Decoupling in an expanding universe: boundary RG-flow affects initial conditions for inflation
journal, April 2004

Particle creation in de Sitter space
journal, February 1985

Symmetry constraints in inflation, α-vacua, and the three point function
journal, December 2016

New duality relating density perturbations in expanding and contracting Friedmann cosmologies
journal, July 2004

Quantum Field Theory in De Sitter Space: Renormalization by Point-Splitting
journal, March 1978