4 papers · 1 filter
Neutrino Oscillations in the Early Universe: A Real Time Formulation
C. M. Ho, D. Boyanovsky, H. J. de Vega
Neutrino oscillations in the early Universe prior to the epoch of primordial nucleosynthesis is studied by implementing real time non-equilibrium field theory methods. We focus on…
Quantum corrections to the inflaton potential and the power spectra from superhorizon modes and trace anomalies
D. Boyanovsky, H. J. de Vega, N. G. Sanchez
We obtain the effective inflaton potential during slow roll inflation by including the one loop quantum corrections to the energy momentum tensor from scalar curvature and tensor p…
The Classical and Quantum Inflaton: the Precise Inflationary Potential and Quantum Inflaton Decay after WMAP
D. Boyanovsky, H. J. de Vega, N. G. Sanchez
We clarify classical inflaton models by considering them as effective field theories `a la Ginzburg-Landau. In this approach, the WMAP statement excluding the pure phi^4 potential…
Quantum corrections to slow roll inflation and new scaling of superhorizon fluctuations
D. Boyanovsky, H. J. de Vega, N. G. Sanchez
Precise cosmological data from WMAP and forthcoming CMB experiments motivate the study of the quantum corrections to the slowroll inflationary parameters.We find the quantum (loop)…