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FernándezRañada, Antonio (2003) On the cosmological variation of the finestructure constant. Europhysics Letters, 61 (2). pp. 174180. ISSN 02955075

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Official URL: http://dx.doi.org/10.1209/epl/i2003002093
URL  URL Type 

http://iopscience.iop.org  Publisher 
http://arxiv.org/abs/astroph/0202224v4  Organisation 
Abstract
A phenomenological and Newtonian model is proposed to explain the recent observed cosmological variation of the finestructure constant as an effect of the quantum vacuum, assuming a at universe with cosmological Lambda constant in the cases (Omega(M), Omega(Lambda)) equal to (0.3, 0.7) and (1,0). Because of the fourth Heisenberg relation, the lifetime of the virtual pairs of the zeropoint radiation must depend on the gravitational potential Phi, so that the quantum vacuum changes its density and acquires a relative permittivity different from one. Since the matter was more concentrated in the past, the gravitational potential of all the universe was stronger and the optical density of the vacuum higher, the electron charge being then more renormalized and smaller than now. The model predicts that Deltaalpha/alpha is proportional to {Omega(M)[a(t)(1)1]2Omega(Lambda)[a(t)(2)1]}, a(t) being the scale factor. This agrees with the observations.
Item Type:  Article 

Additional Information:  © EDP Sciences. I am grateful to Profs. C. Aroca, A.I.G. de Castro, E. López, J. M. Usón and J.L. Trueba for discussions. 
Subjects:  Sciences > Physics > Electricity Sciences > Physics > Electronics 
ID Code:  24931 
Deposited On:  07 Apr 2014 12:15 
Last Modified:  10 Dec 2018 14:58 
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