The spatially flat Friedmann equation for early rainbow universe

Han Siong Ch'Ng, Geri Kibe Gopir, Shahidan Radiman

Research output: Contribution to journalArticle

Abstract

We derive the spatially flat rainbow-Friedmann equation from de Broglie-Bohm interpretation in canonical quantum cosmology. Our result shows that the spatially flat rainbow-Friedmann equations of early and late-time universe are having different forms. The spatially flat rainbow-Friedmann equation of early universe which is obtained in this paper is quite different from the one which was initially derived by Magueijo and Smolin [Class. Quantum Grav. 21, 1725 (2004)]. However, the spatially flat rainbow-Friedmann equation for late-time universe obtained in this paper is found to be the same as the one derived by Magueijo and Smolin (for the case k = 0 and Newton's gravitational constant G(E) = G<inf>0</inf>). The new spatially flat rainbow-Friedmann equation obtained in this paper could provide an alternative way in understanding the evolution of the early rainbow universe.

Original languageEnglish
Article number1550165
JournalModern Physics Letters A
Volume30
Issue number31
DOIs
Publication statusPublished - 10 Oct 2015

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rainbows
universe
gravitational constant
newton
cosmology

Keywords

  • Canonical quantum cosmology
  • de Broglie-Bohm interpretation
  • Friedmann equation
  • rainbow universe
  • Wheeler-DeWitt equation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

Cite this

The spatially flat Friedmann equation for early rainbow universe. / Ch'Ng, Han Siong; Gopir, Geri Kibe; Radiman, Shahidan.

In: Modern Physics Letters A, Vol. 30, No. 31, 1550165, 10.10.2015.

Research output: Contribution to journalArticle

Ch'Ng, Han Siong ; Gopir, Geri Kibe ; Radiman, Shahidan. / The spatially flat Friedmann equation for early rainbow universe. In: Modern Physics Letters A. 2015 ; Vol. 30, No. 31.
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