Probing Quantum Features of Gravity in Tabletop Regime and Reassessing the I.I.D. Assumption in Quantum Probability AssignmentsConfirmed

by Lin-Qing Chen (Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna)

Friday May 30, 2025, 11:00 a.m. → 12:30 p.m. America/Toronto

PI/4-405 - Bob Room (Perimeter Institute for Theoretical Physics)

Recent advancements in tabletop experiments may offer the first empirical proof that gravity is not classical. In the first part of my talk, I will present two effects that overcome the current limitations of Newton potential phenomenology, involving generic quantum sources of gravity. These effects are derived using a field-basis formulation of linearised gravity, which is particularly suited for describing superposition of macroscopically distinct gravitational field configurations in the low energy regime. This formalism also offers a natural setting for exploring the gauge symmetries. In particular, I will discuss the construction of linearised quantum diffeomorphism transformations by extending the notion of quantum reference frames to quantum fields.