MG12 - Talk detail |
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Participant |
Navarro-Salas, Jose | |
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Institution |
University of Valencia and IFIC - Calle Doctor Moliner, 50. Facultad de Física - Burjassot - Valencia - Spain | |
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Session |
Talk |
Abstract |
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COM1 |
Inflation, Quantum Field Renormalization, and CMB Anisotropies |
Inflationary cosmology has proved to be very successful at predicting the properties of the anisotropies observed in the cosmic microwave background (CMB). In this talk we point out that if quantum field renormalization is taken into account, the predictions of slow-roll inflation for both the scalar and tensorial power spectrum change significantly. This leads, in particular, to a change in the consistency condition that relates the tensor-to-scalar amplitude ratio $r$ with spectral indices. By comparing the new predictions with the five year WMAP satellite measurements of the CMB, we find that the new predictions agree with observation and improve the likelihood that the simplest potential energy functions (quadratic and quartic, respectively) are responsible for driving the early inflationary expansion of the universe. In the near future, observations of the influence of gravitational waves from the early universe on the CMB will test our new predictions. |