Tensor non-gaussianities in Loop Quantum Cosmology

Not scheduled
15m
IIT Guwahati

IIT Guwahati

Poster Cosmology Cosmology

Speaker

Sudip Naskar

Description

In Loop Quantum Cosmology
(LQC), inflation is preceded by a bounce. The scalar and tensor power
spectra and scalar bispectrum have been investigated in LQC. These
studies show that the presence of the bounce sets a new scale in the
problem. The spectra of perturbations with wavelengths comparable to or
larger than this scale departs from the nearly-scale invariant behaviour
predicted in slow-roll inflation. In this work, we investigate the
evolution of tensor perturbations in LQC. In particular, we review the
tensor perturbations at the level of power spectrum and present our
investigations at the level of bispectrum and non-gaussianities. We compare our results with
the scalar bispectrum generated in LQC.

Email naskar.sudip@gmail.com
Affiliation NITK

Authors

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