Soutenance de thèse de Sebastian Lahs ce 3 novembre 2025 en Salle Balmer 15h

03 November 2025 par paul
soutenance de thèse

Title: “P and T violating moments of Cs in cryogenic matrices”

Abstract: “To answer the open questions in the fundaments of physics, new theories that reach beyond the standard model of particle physics are needed. Many of these predict violations of the fundamental symmetries of Parity P and Time reversal T. While such measurements are usually conducted using atomic and molecular beams, the method of matrix isolation spectroscopy has so far received less attention. It has the potential advantage of performing spectroscopy on unprecedented numbers of atoms/molecules. Additionally, solid state systems can offer some unique properties that give access to P or T odd moments that are difficult to measure otherwise. To utilize this new platform in the future, it is necessary first to understand how the trapping of atoms inside the cryogenic matrix looks in detail.”

location: Salle Balmer 03.11.2025, 15h