Varying Constants and Fundamental Cosmology – VARCOSMOFUN’16

Session

[VC-T] Varying constants – theory

1-VC-T

12 Sept 2016, 14:00

Room 7

Conveners

[VC-T] Varying constants – theory

• Mikhail Kozlov (Petersburg Nuclear Physics Institute)

[VC-T] Varying constants – theory

• Mikhail Kozlov (Petersburg Nuclear Physics Institute)

25. The Relation Between Fundamental Constants and Particle Physics Parameters

Prof. Rodger Thompson (University of Arizona, Steward Observatory)

12/09/2016, 14:00

parallel

Astronomical observations provide constraints on the time variation of the fundamental constants, the proton to electron mass ratio and the fine structure constant. These constants are dependent on particular combinations of the Quantum Chromodynamic Scale, the Higgs Vacuum Expectation Value and the Yukawa Couplings. The coefficients of these particle physics parameters are model dependent...

26. Diatomic molecules as probes for variation of fundamental constants

Anastasia Borschevsky (University of Groningen)

12/09/2016, 14:40

parallel

Diatomic molecules are very promising probes for variation of fundamental constants (VFC), as their spectra can be very sensitive to both α and μ, making it possible to look for change in both constants in a single experiment [1].
Nearly degenerate levels with different sensitivity to VFC may provide huge enhancements of the relative variation, since δω/ω tends to infinity when the distance...

118. Non-minimally coupled varying constants quantum cosmologies

Adam Balcerzak

12/09/2016, 15:10

parallel

We consider gravity theory with varying speed of light and varying gravitational constant. Both constants are represented by non-minimally coupled scalar fields. We examine the cosmological evolution in the near curvature singularity regime. We find that at the curvature singularity the speed of light goes to infinity while the gravitational constant vanishes. This corresponds to the Newton's...

113. Varying constant theories from thermodynamics perspective

Hussain Gohar (University of Szczecin, Poland)

12/09/2016, 16:10

parallel

We formulate the basic framework of thermodynamical entropic force cosmology which allows variation of the gravitational constant G and the speed of light c. Some cosmological solutions are given and tested against combined observational data (supernovae, BAO, and CMB). We observationally test that the fit of the data is allowed for the speed of light c growing and the gravitational constant G...

97. Varying constants and cyclic universes

Konrad Marosek (University of Szczecin)

12/09/2016, 16:40

parallel

Using the method of regularization of singularities due to varying constants, I will first discuss some proposals to construct the cyclic models of the universe which can be connected by standard and non-standard singularities. Then, on the footing of thermodynamics and the 2nd law I will discuss the cyclic multiverse models having different values of the fundamental constants which can...

126. Varying constants quantum cosmology

Katarzyna Leszczyńska (University of Szczecin)

12/09/2016, 17:10

parallel

In the talk I will focus on quantum cosmology minisuperspace models based on the Wheeler–DeWitt equation which apart from 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 probability of tunneling of the universe “from nothing” to the Friedmann...