Gravitational effects in macroscopic quantum systems: a first-principles analysis

Understand

We analyze the weak-field limit of General Relativity with matter and its possible quantisations.

• This analysis aims towards a predictive quantum theory to provide a first-principles description of gravitational effects in macroscopic quantum systems.
• This includes recently proposed experiments on the generation of (Newtonian) gravitational forces from quantum distributions of matter, and phenomena like gravity-induced entanglement, gravitational cat states, gravity-induced Rabi oscillations, and quantum causal orderings of events.
• Our main results include: (i) The demonstration that these phenomena do not involve true gravitational degrees of freedom.