Evolving Dark Energy with w =/ -1 Metadata

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Title

  • Main Title Evolving Dark Energy with w =/ -1

Creator

  • Author: Hall, Lawrence J.
    Creator Type: Personal
  • Author: Nomura, Yasunori
    Creator Type: Personal
  • Author: Oliver, Steven J.
    Creator Type: Personal

Contributor

  • Sponsor: Lawrence Berkeley National Laboratory. Physics Division.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Berkeley National Laboratory
    Place of Publication: Berkeley, California
    Additional Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Date

  • Creation: 2005-03-31

Language

  • English

Description

  • Content Description: Theories of evolving quintessence are constructed that generically lead to deviations from the w = -1 prediction of non-evolving dark energy. The small mass scale that governs evolution, m_\phi \approx 10^-33 eV, is radiatively stable, and the"Why Now?'' problem is solved. These results rest crucially on seesaw cosmology: in broad outline, fundamental physics and cosmology can be understood from only two mass scales, the weak scale, v, and the Planck scale, M. Requiring a scale of dark energy \rho_DE^1/4 governed by v^2/M, and a radiatively stable evolution rate m_\phi given by v^4/M^3, leads to a distinctive form for the equation of state w(z) that follows from a cosine quintessence potential. An explicit hidden axion model is constructed. Dark energy resides in the potential of the axion field which is generated by a new QCD-like force that gets strong at the scale \Lambda \approx v^2/M \approx \rho_DE^1/4. The evolution rate is given by a second seesaw that leads to the axion mass, m_\phi \approx \Lambda^2/f, with f \approx M.

Subject

  • Keyword: Radiative Correction, Stability
  • Keyword: Numerical Calculations
  • Keyword: Forecasting
  • Keyword: Potential, Axion
  • Keyword: Cosmology
  • Keyword: Quintessence
  • Keyword: Dark Energy
  • STI Subject Categories: 72
  • Keyword: Seesaw Model
  • Keyword: Physics Dark Energy
  • Keyword: Symmetry Breaking
  • Keyword: Axions

Source

  • Journal Name: Physical Review D; Journal Volume: 95; Journal Issue: 14; Related Information: Journal Publication Date: 29 September 2005

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LBNL-57425
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1103/PhysRevLett.95.141302
  • Office of Scientific & Technical Information Report Number: 964010
  • Archival Resource Key: ark:/67531/metadc928064