Fundamental Constants in Cosmology
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 5212
Special Issue Editors
Interests: cosmology; CMB; BBN; varying physical constants; stellar evolution; pulsars; gravitational lensing
Interests: cosmology; varying physical constants; higher-order modified gravity: GW, inflation and the dark sector; second-order gauge theory
Special Issue Information
Dear Colleagues,
Despite the stunning success of the standard ΛCDM model in explaining various cosmological observations, many gaps remain which require new physics. One needs to examine the foundations of physics which has been developed over centuries from local observations extrapolated to the Universe at large. One such foundation is that constants relating various observables remain constant everywhere and all times. This is especially so because attempts to measure their variations have led to very tight constraints on their potential variation. One may ask if the tight constraints are due to extremely high constancy of the constants or due to the limitations of the tools used for their measurement.
Since Dirac in 1937 suggested the possibility of variability of Newton’s gravitational constant derived from his large numbers theory, there has been a great deal of interest not only in its variability but also in the potential of the variability of other fundamental constants, such as the speed of light, the fine structure constant, and proton to electron mass ratio. Since each fundamental constant is considered to represent a physical symmetry through Noether’s theorem, Symmetry has decided to produce a Special issue comprising a collection of diverse and innovative research papers on the Fundamental Constants in Cosmology.
Prof. Dr. Rodrigo Rocha Cuzinatto
Prof. Dr. Rajendra Gupta
Guest Editors
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Keywords
- Dirac cosmology
- constancy of physical constants
- measurement of physical constants
- gravitational constant
- dark energy
- vacuum energy
- dark matter
- symmetry breaking
- energy conservation in cosmology
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