Limit on the time variation of the fine structure constant driven by quintessence

Wolung Lee*, Kin Wang Ng, Da Shin Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We study the time variation of the fine structure constant driven by quintessential dark energy which is coupled to electromagnetism. By employing phenomenological quintessential models which provide the scalar field with maximal dynamics and satisfy the constraints from SNIa observations and the WMAP, we show that the fifth force experiments restrict the variation of the value of α at the decoupling epoch with respect to the present-day value from being less than about 0.1%.

Original languageEnglish
Pages (from-to)1089-1092
Number of pages4
JournalModern Physics Letters A
Volume19
Issue number13-16
DOIs
Publication statusPublished - 2004 May 30
Externally publishedYes

Keywords

  • Darke energy
  • Fine structure constant
  • Quintessence

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics
  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Limit on the time variation of the fine structure constant driven by quintessence'. Together they form a unique fingerprint.

Cite this