DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Suppression of long-wavelength CMB spectrum from the no-boundary initial condition

Abstract

The lack of correlations at the long-wavelength scales of the cosmic microwave background spectrum is a long-standing puzzle and it persists in the latest Planck data. By considering the Hartle–Hawking no-boundary wave function as the initial condition of the inflationary universe, we propose that the power suppression can be the consequence of a massive inflaton, whose initial vacuum is the Euclidean instanton in a compact manifold. We calculate the primordial power spectrum of the perturbations, and find that as long as the scalar field is moderately massive, the power spectrum is suppressed at the long-wavelength scales.

Authors:
 [1];  [2]; ORCiD logo [3]
  1. National Taiwan Univ., Taipei (Taiwan); SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  2. National Taiwan Univ., Taipei (Taiwan)
  3. National Taiwan Univ., Taipei (Taiwan); The Asia Pacific Center for Theoretical Physics, Pohang (South Korea); POSTECH, Pohang (South Korea)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1490620
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 11; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Chen, Pisin, Lin, Yu-Hsiang, and Yeom, Dong-han. Suppression of long-wavelength CMB spectrum from the no-boundary initial condition. United States: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-6426-4.
Chen, Pisin, Lin, Yu-Hsiang, & Yeom, Dong-han. Suppression of long-wavelength CMB spectrum from the no-boundary initial condition. United States. https://doi.org/10.1140/epjc/s10052-018-6426-4
Chen, Pisin, Lin, Yu-Hsiang, and Yeom, Dong-han. Wed . "Suppression of long-wavelength CMB spectrum from the no-boundary initial condition". United States. https://doi.org/10.1140/epjc/s10052-018-6426-4. https://www.osti.gov/servlets/purl/1490620.
@article{osti_1490620,
title = {Suppression of long-wavelength CMB spectrum from the no-boundary initial condition},
author = {Chen, Pisin and Lin, Yu-Hsiang and Yeom, Dong-han},
abstractNote = {The lack of correlations at the long-wavelength scales of the cosmic microwave background spectrum is a long-standing puzzle and it persists in the latest Planck data. By considering the Hartle–Hawking no-boundary wave function as the initial condition of the inflationary universe, we propose that the power suppression can be the consequence of a massive inflaton, whose initial vacuum is the Euclidean instanton in a compact manifold. We calculate the primordial power spectrum of the perturbations, and find that as long as the scalar field is moderately massive, the power spectrum is suppressed at the long-wavelength scales.},
doi = {10.1140/epjc/s10052-018-6426-4},
journal = {European Physical Journal. C, Particles and Fields},
number = 11,
volume = 78,
place = {United States},
year = {Wed Nov 14 00:00:00 EST 2018},
month = {Wed Nov 14 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: The power spectrum obtained by numerically solving the perturbations with $\tilde{m}$ = 0, H0 = $\sqrt{8π/3}$.

Save / Share:

Works referenced in this record:

Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The slow-roll approximation
journal, December 2016


Quantum Theory of Gravity. I. The Canonical Theory
journal, August 1967


Loop quantum cosmology: from pre-inflationary dynamics to observations
journal, November 2015


The euclidean vacuum: Justification from quantum cosmology
journal, November 1987


On the modification of the cosmic microwave background anisotropy spectrum from canonical quantum gravity
journal, May 2013


Chaotic inflation
journal, September 1983


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


The no-boundary measure in scalar–tensor gravity
journal, April 2012


Quantum cosmology and the evolution of inflationary spectra
journal, December 2016

  • Kamenshchik, Alexander Y.; Tronconi, Alessandro; Venturi, Giovanni
  • Physical Review D, Vol. 94, Issue 12
  • DOI: 10.1103/PhysRevD.94.123524

Wave function of the Universe
journal, December 1983


Classical universes of the no-boundary quantum state
journal, June 2008


Quantum gravity and the large scale anomaly
journal, April 2015

  • Kamenshchik, Alexander Y.; Tronconi, Alessandro; Venturi, Giovanni
  • Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 04
  • DOI: 10.1088/1475-7516/2015/04/046

Gravitational effects on and of vacuum decay
journal, June 1980


Phantom of the Hartle–Hawking instanton: connecting inflation with dark energy
journal, February 2016


What initial condition of inflation would suppress the large-scale CMB spectrum?
journal, January 2016


Quantum gravity in the sky: interplay between fundamental theory and observations
journal, December 2016


No-Boundary Measure of the Universe
journal, May 2008


The no-boundary measure in string theory: applications to moduli stabilization, flux compactification and cosmic landscape
journal, August 2012


Planck 2015 results : XX. Constraints on inflation
journal, September 2016


A new type of isotropic cosmological models without singularity
journal, March 1980


Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case
journal, May 2016


Toward inflation models compatible with the no-boundary proposal
journal, June 2014


Quantum Gravitational Contributions to the Cosmic Microwave Background Anisotropy Spectrum
journal, January 2012


The Born–Oppenheimer method, quantum gravity and matter
journal, December 2017

  • Kamenshchik, Alexander Yu; Tronconi, Alessandro; Venturi, Giovanni
  • Classical and Quantum Gravity, Vol. 35, Issue 1
  • DOI: 10.1088/1361-6382/aa8fb3

Origin of structure in the Universe
journal, April 1985


Euclidean quantum gravity and stochastic inflation
journal, March 2013


Quantum gravity, time, bounces, and matter
journal, June 2018

  • Kamenshchik, Alexander Yu.; Tronconi, Alessandro; Vardanyan, Tereza
  • Physical Review D, Vol. 97, Issue 12
  • DOI: 10.1103/PhysRevD.97.123517

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

  • Bunch, T. S.; Davies, P. C. W.
  • Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 360, Issue 1700
  • DOI: 10.1098/rspa.1978.0060

Signatures of quantum gravity in a Born–Oppenheimer context
journal, June 2014


Quantum Theory of Gravity. I. The Canonicál Theory
journal, July 1968


The Classical Universes of the No-Boundary Quantum State
text, January 2008


The no-boundary measure in scalar-tensor gravity
text, January 2011


Euclidean quantum gravity and stochastic inflation
text, January 2012


Signatures of Quantum Gravity in a Born-Oppenheimer Context
text, January 2014


Quantum Gravity and the Large Scale Anomaly
text, January 2015


Phantom of the Hartle-Hawking instanton: connecting inflation with dark energy
text, January 2015


Quantum Cosmology and the Evolution of Inflationary Spectra
text, January 2016


Quantum Gravity, Time, Bounces and Matter
text, January 2018


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.