Hi all,
Next week, Riccardo Veneziani will talk about “Observables, Gravity, and Gravitationally Induced Entanglement”. See below for the abstract.
The talk will take place on Tuesday at 11:15 in HIT E41.1.
Best, Ladina
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Title: Observables, Gravity, and Gravitationally Induced Entanglement
Abstract: Tabletop approaches to quantum gravity have recently gained attention as promising ways to probe the quantum nature of gravity at experimentally accessible scales. A central idea is to test whether gravity can mediate entanglement between massive probe systems. If such gravitationally induced entanglement is observed, information-theoretic arguments suggest that purely classical models of gravity would be incompatible with the data.
In this thesis, I examine the role of observables in assessing the classicality or nonclassicality of gravity. Using the framework of General Probabilistic Theories, I analyze how observables encode operationally meaningful notions of classicality and how these differ from information-theoretic criteria such as LOCC-mediated interactions. I then contrast this with the geometric notion of observables in General Relativity, where diffeomorphism invariance challenges locality and measurement.