Conférence Midi-Pyrénées : Next generation quantum sensors
La section locale Midi-Pyrénées de la Société Française de Physique a le plaisir d’accueillir Alexandre Gauguet du Laboratoire Collisions-Agrégats-Réactivité (Université de Toulouse), le Vendredi 27 mars 2026 à 11h dans la salle de séminaires FeRMI du bât. 3R4 (1er étage).
Une conférence d’ Alexandre Gauguet
Atom interferometry has emerged as a powerful tool for quantum sensing. It enables precise measurements of inertial effects and has applications in geophysics, navigation, and determining fundamental constants such as the fine structure constant and Newton’s gravitational constant.
In this talk, I will present a new method based on stroboscopic stabilization in accelerated optical lattices. This method sets a new standard for large momentum transfer interferometry. Using this technique, we achieved a momentum separation of 600 photon recoils, ℏk, in just two milliseconds. This paves the way for atom interferometers with meter-scale arm separation and enhanced quantum sensing performance. This new class of atom interferometers could be used for gravitational wave detection and fundamental physics tests.
Lastly, I will briefly discuss our ongoing project at the Laboratoire Collisions Agrégats Réactivité. The project involves a large-scale atom interferometer that explores analogues of Aharonov-Bohm effects and their potential applications in testing fundamental physics principles.
Informations pratiques
- Vendredi 27 mars 2026, 11h
- Salle de séminaires FeRMI Bât. 3R4, Université de Toulouse
- Contact : Lise-Marie Lacroix
Un café de bienvenue vous sera offert par la SFP de 10h30 à 11h.
