Description
Removing the primordial Big-Bang singularity by means of quantum
effects requires to quantize cosmology, resulting in possible superpositions. In the
framework of a specific example (FLRW and perfect fluid), we show that the
standard quantum treatment can produce non-gaussianities through one loop
effects over virtual Universes, while assuming a quantum trajectory can modify the
primordial power spectrum, thereby providing a way of testing this approach to
quantum mechanics.