Abstracts

David Edward Bruschi

On the weight of entanglement

One of the most important open questions is how do quantum systems gravitate. Regardless of the tremendous efforts in studying this fundamental aspect of Nature, no conclusive answer to this question has yet been given.

We discuss the study of the effects of entanglement on the gravitational field. Our work employs semi-classical gravity in a regime where it arguably can give sensible predictions. Furthermore, motivated by considerations on the nature of energy in quantum systems, we propose a radical change to the theory of gravitation, arguing that not all energy is a source for gravity. We analyse the proposed modification and discuss the implications. We conclude by emphasising the necessary next steps to transform this idea and intuition, not conclusively established, into the core of a new approach to understanding how quantum matter gravitates.