Do the fundamental physical constants have the same values in different regions of space-time?

Authors
Varshalovich, DA Ivanchik, AV Potekhin, AY
Citation
Da. Varshalovich et al., Do the fundamental physical constants have the same values in different regions of space-time?, TECH PHYS, 44(9), 1999, pp. 1001-1004
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS
ISSN journal
10637842 → ACNP
Volume
44
Issue
9
Year of publication
1999
Pages
1001 - 1004
Database
ISI
SICI code
1063-7842(199909)44:9<1001:DTFPCH>2.0.ZU;2-B
Abstract
An analysis of quasar spectra yields highly reliable constraints on the pos sible variation of the fine-structure constant alpha and the proton-to-elec tron mass ratio mu during cosmological evolution from the epoch correspondi ng to a cosmological red shift z approximate to 2.8 (i.e., similar to 10(10 ) years ago) to the current epoch (z=0): < 2x10(-14) yr(-1) and < 2x10(-14) yr(-1). (C) 1999 American Institute of Physics. [S1063-7842(99)00109-9].