scholarly journals Avoiding unrealistic priors: The case of dark energy constraints from the time variation of the fine-structure constant

2016 ◽  
Vol 93 (8) ◽  
Author(s):  
P. P. Avelino
Keyword(s):  
Fine Structure ◽  
Dark Energy ◽  
Time Variation ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Energy Constraints

LIMIT ON THE TIME VARIATION OF THE FINE STRUCTURE CONSTANT DRIVEN BY QUINTESSENCE

2004 ◽  
Vol 19 (13n16) ◽  
pp. 1089-1092 ◽  
Author(s):  
WOLUNG LEE ◽  
KIN-WANG NG ◽  
DA-SHIN LEE
Keyword(s):  
Fine Structure ◽  
Dark Energy ◽  
Scalar Field ◽  
Time Variation ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Fifth Force

We study the time variation of the fine structure constant driven by quintessential dark energy which is coupled to electromagnetism. By employing phenomenological quintessential models which provide the scalar field with maximal dynamics and satisfy the constraints from SNIa observations and the WMAP, we show that the fifth force experiments restrict the variation of the value of α at the decoupling epoch with respect to the present-day value from being less than about 0.1%.

scholarly journals Constraining variations in the fine structure constant in the presence of early dark energy

2011 ◽  
Vol 84 (2) ◽  
Author(s):  
Erminia Calabrese ◽  
Eloisa Menegoni ◽  
C. J. A. P. Martins ◽  
Alessandro Melchiorri ◽  
Graca Rocha
Keyword(s):  
Fine Structure ◽  
Dark Energy ◽  
Structure Constant ◽  
Fine Structure Constant

scholarly journals Dark energy and equivalence principle constraints from astrophysical tests of the stability of the fine-structure constant

2015 ◽  
Vol 2015 (08) ◽  
pp. 047-047 ◽  
Author(s):  
C.J.A.P. Martins ◽  
A.M.M. Pinho ◽  
R.F.C. Alves ◽  
M. Pino ◽  
C.I.S.A. Rocha ◽  
...  
Keyword(s):  
Fine Structure ◽  
Dark Energy ◽  
Equivalence Principle ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
The Stability

scholarly journals Implications of gauge unification for time variation of the fine structure constant

2002 ◽  
Vol 528 (1-2) ◽  
pp. 121-128 ◽  
Author(s):  
Paul Langacker ◽  
Gino Segrè ◽  
Matthew J. Strassler
Keyword(s):  
Fine Structure ◽  
Time Variation ◽  
Structure Constant ◽  
Fine Structure Constant
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