The interface between gravity and quantum theory has become a lively field of research, substantially driven by the developments of quantum optics technologies.\u00a0One of the most ambitious experimental goals is the preparation of a massive source in a quantum superposition of spatial locations, enabling tests of gravity in genuinely quantum regimes.\u00a0Such experiments raise crucial theoretical questions: what insight could they provide on the (quantum) nature of gravity, and which tools and techniques are best suited to interpret them? Information-theoretic methods have proved very useful to analyse these scenarios, with entanglement and the LOCC theorem playing a central role.\u00a0While these methods are naturally suited to the experimental platforms under consideration, their application to gravity is complicated by the gauge-theoretic nature of the field, which challenges standard notions of subsystems, locality, and information.\u00a0In this talk, I will argue that concepts and tools of quantum information should be generalised to accommodate gauge theories and gravity.\u00a0<\/p>\n\n\n\n
After reviewing the role played by information-theoretic arguments in current proposals, I will discuss how some of these notions can be reformulated in a gauge-invariant framework. This perspective provides a route toward extending the methodology of quantum information to gravitational scenarios.<\/p>\n","protected":false},"excerpt":{"rendered":"
The interface between gravity and quantum theory has become a lively field of research, substantially driven by the developments of quantum optics technologies.\u00a0One of the most ambitious experimental goals is the preparation of a massive source in a quantum superposition of spatial locations, enabling tests of gravity in genuinely quantum regimes.\u00a0Such experiments raise crucial theoretical […]<\/p>\n","protected":false},"author":1,"featured_media":2664,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[52],"tags":[222],"class_list":["post-2661","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-invited-talk","tag-giacomini-flaminia"],"yoast_head":"\n