Speaker
Description
We explore novel generation of genuine multipartite entanglement in the context of cosmological inflation. In particular, we apply standard perturbative techniques to quantify entanglement production, focusing on the recently proposed Entanglement Distance, which introduces a geometric interpretation of quantum correlations in terms of the Fubini-Study metric. We first discuss how multipartite entanglement emerges from gravitational particle production processes, currently object of intense studies to address dark matter origin and analogue models of gravity. Then, we investigate the entanglement features arising from primordial non-Gaussian quantum fluctuations, which are expected to play a key role in driving the quantum-to-classical transition of cosmological perturbations. We show that a complete understanding of entanglement generation in cosmological settings requires a fully multipartite approach, further discussing potential observational implications for dark matter searches and the Cosmic Microwave Background (CMB) radiation.