Title

"Analysis of quantum Fisher information in de Sitter expansion"

Speaker

Marcello Rotondo (INFN)

Abstract

The evolution of a vacuum field in an expanding universe results in the creation of entangled particle states. We consider the case of a massless inflaton in de Sitter expansion and analyse the classical and quantum Fisher information of the Hubble scale parameter in order to find the optimisation of a chosen projective measurement operator.

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