# Study of the Quantum to classical transition

Huguet APC UMR 7164, Univ. Paris Cité, co-encadrant J. Quéva, SPE UMR

6134, Univ. de Corse)

with a particular interest to quantum to classical gravity.

Of fundamental importance are the imprints left from quantum phenomenon

in the observed signal, such as CMB anisotropies and gravitational waves.

Quantum gravity is a hard task to tackle head-on.