26ème Congrès Général de la SFP

Two photon optical shielding of collisions between ultracold polar molecules

Non programmé

20m

Centre des Congrès de la Villette (Cité des sciences et de l'Industrie, Paris)

Poster MC5 Physico-chimie des environnements atomiques et moléculaires froids et ultra froids Session Poster 1: MC3, MC5, MC6, MC11, MC13, MC15, MC16, MC18, MC19, MC25, REDP, posters hors MC

Orateur

Charbel Karam (Laboratoire Aimé Cotton - Université Paris Saclay)

Description

We propose a method to engineer repulsive long-range interactions between ultracold ground-state molecules using optical fields, thus preventing short-range collisional losses. It maps the microwave coupling recently used for collisional shielding onto a two-photon transition, and takes advantage of optical control techniques. In contrast to the previously proposed one-photon optical shielding [Phys. Rev. Lett. 125, 153202 (2020)], this scheme avoids heating of the molecular gas due to photon scattering. The proposed protocol, exemplified for 23Na39K, should be applicable to a large class of polar diatomic molecules.

Documents de présentation

Charbel_Poster_SFP.pdf