QG3 - Loop quantum gravity: cosmology and black holes |
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Speaker |
Vijayakumar, Sreenath |
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Coauthors |
Agullo, Ivan; Bolliet, Boris |
| Talk Title |
Non-Gaussianity in Loop Quantum Cosmology |
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Abstract |
Loop Quantum Cosmology provides an extension of the inflationary scenario in to the Planck era. The evolution of perturbations, in such a scenario, has been investigated at the linear order. In this talk, I will present our investigations of the second-order perturbations in LQC. We shall discuss, primarily, two aspects. Firstly, whether the second-order contributions arising from the cosmic bounce, occurring at Planck scale, could be large enough to break the validity of the perturbative expansion. Secondly, the implications of the upper bounds on primordial non-Gaussianity, arrived at by the Planck collaboration, on the LQC phenomenology. |
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