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- W2520073312 abstract "We illustrate how it is possible to calculate the quantum gravitational effects on the spectra of primordial scalar/tensor perturbations starting from the canonical, Wheeler-De Witt, approach to quantum cosmology. The composite matter-gravity system is analysed through a Born-Oppenheimer approach in which gravitation is associated with the heavy degrees of freedom and matter (here represented by a scalar field) with the light ones. Once the independent degrees of freedom are identified the system is canonically quantised. The differential equation governing the dynamics of the primordial spectra with its quantum-gravitational corrections is then obtained and is applied to diverse inflationary evolutions. Finally, the analytical results are compared to observations through a Monte Carlo Markov Chain technique and an estimate of the free parameters of our approach is finally presented and the results obtained are compared with previous ones." @default.
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- W2520073312 date "2016-12-23" @default.
- W2520073312 modified "2023-10-18" @default.
- W2520073312 title "Quantum cosmology and the evolution of inflationary spectra" @default.
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- W2520073312 doi "https://doi.org/10.1103/physrevd.94.123524" @default.
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