Evolution of the fine structure constant driven by dark matter and the cosmological constant
نویسندگان
چکیده
منابع مشابه
Evolution of the Fine Structure Constant Driven by Dark Matter and the Cosmological Constant
Bekenstein’s model of a scalar field, φ, that affects the electromagnetic permeability (usually identified with “changing α”) predicts tiny variations of the effective fine structure constant up to very high red-shifts, |α(z = 3.5)/α0− 1| < 10, when the constraints from Eötvös-Dicke-Braginsky types of experiments are imposed. We generalize this model by allowing additional couplings of φ to bot...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.65.085044