Interferometry of Entangled Quantum States of Light in Curved Space-Time

Date: February 23, 2022
Time: 11:30 CET
Event: 12th Central European Relativity Seminar (CERS12)
Location: Budapest, Hungary

Abstract: Precision quantum interferometry provides a viable way to probe the behaviour of single photons and entangled photon pairs in gravitational fields: a domain that defies a purely Newtonian description. While currently planned experiments aiming to detect such effects at the laboratory-scale are explicable using the weak equivalence principle, larger-scale experiments have the potential to detect gravitationally induced quantum interference in which space-time curvature is not negligible. In this talk, I present the basic mechanisms underlying such experiments and explain how maximally path-entangled NOON states could be used to demonstrate Riemann curvature.

Relevant publication: Measuring Space-Time Curvature using Maximally Path-Entangled Quantum States.