Varying constants quantum cosmology
نویسندگان
چکیده
منابع مشابه
Quantum Cosmology and Varying Physical Constants
The main task of this review is to discuss quantum cosmology minisuperspace models based on the Wheeler–DeWitt equation, which apart from the standard matter and 3-geometry configuration degrees of freedom, allow those related to the variability of physical constants—varying speed of light (VSL) c and varying gravitational constant G. The tunneling probability of the universe “from nothing” to ...
متن کاملCosmology with varying constants.
The idea of possible time or space variations of the 'fundamental' constants of nature, although not new, is only now beginning to be actively considered by large numbers of researchers in the particle physics, cosmology and astrophysics communities. This revival is mostly due to the claims of possible detection of such variations, in various different contexts and by several groups. I present ...
متن کاملVarying Constants, Gravitation and Cosmology
Fundamental constants are a cornerstone of our physical laws. Any constant varying in space and/or time would reflect the existence of an almost massless field that couples to matter. This will induce a violation of the universality of free fall. Thus, it is of utmost importance for our understanding of gravity and of the domain of validity of general relativity to test for their constancy. We ...
متن کاملVarying Constants Entropic-ΛCDM Cosmology
We formulate the basic framework of thermodynamical entropic force cosmology which allows variation of the gravitational constant G and the speed of light c. Three different approaches to the formulation of the field equations are presented. Some cosmological solutions for each framework are given and one of them is tested against combined observational data (supernovae, BAO, and CMB). From the...
متن کاملQuantum Cosmology and the Constants of Nature
In models where the constants of Nature can take more than one set of values, the cosmological wave function ψ describes an ensemble of universes with different values of the constants. The probability distribution for the constants can be determined with the aid of the ‘principle of mediocrity’ which asserts that we are a ‘typical’ civilization in this ensemble. I discuss the implications of t...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2015
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2015/02/012