Prog. Theor. Phys. Vol. 107 No. 3 (2002) pp. 631-636

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Letters

Quintessence Cosmology and Varying α

¹Department of Physics, Kyoto University, Kyoto 606-8502, Japan
²Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, 606-8502 Japan

(Received December 11, 2001)

Abstract:

If the reported measurements of the time variation of the fine structure constant from observations of distant QSOs are correct, combined with the Oklo limit, they would strongly constrain the class of the quintessence potential. If these results prove valid, future satellite experiments (STEP) should measure the induced violation of the weak equivalence principle. Future cosmological observations of nearby (z \lesssim0.5) absorption systems would make it clear whether the variation is significant or not.

URL : http://ptp.ipap.jp/link?PTP/107/631/
DOI : 10.1143/PTP.107.631

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Citing Article(s) :

Progress of Theoretical Physics Vol. 110 No. 2 (2003) pp. 195-199 :
Supernova Cosmology and the Fine Structure Constant

Takeshi Chiba and Kazunori Kohri