MG12 - Talk detail |
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Participant |
Santos, Grasiele | |
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Institution |
Centro Brasileiro de Pesquisas Físicas - CBPF - Dr. Xavier Sigaud, 150 - Urca - Rio de Janeiro - Rio de Janeiro - Brazil | |
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Session |
Talk |
Abstract |
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COT3 |
Cosmology driven by one-loop QED |
The one-loop semi-classical description of quantum electrodynamics is taken as a source of the Einstein field equations for a homogeneous and isotropic universe, in the limit of high conductivity which is expected to hold in the early era of our Universe. It is shown that a cosmic singularity (the standard big-bang scenario) is either present or not according with an arbitrary choice of accuracy. |