2021 CAP Virtual Congress / Congrès virtuel de l'ACP 2021

(G*) Gravitational scattering on quantum superposed states

10 Jun 2021, 16:04

3m

Underline Conference System

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Theoretical Physics / Physique théorique (DTP-DPT) R3-3 Quantum Theory (DTP) / Théorie quantique (DPT)

Speaker

Mr Victor Massart (Université de Montréal)

Description

This talk aim to discuss the scattering of particles on quantum superposed states. The fact that one of the initial states is in a superposition implies that the plane wave approximation is not valid anymore which is what we usually do. This will lead to the introduction of Wigner function and a formalism to describe this situation.
We will apply this new formalism to the question of gravitational scattering. The idea will be to put in evidence a quantum effect of gravity due to the superposition. We will compute the cross section and discuss the possibility to observe such a small effect.