Two-photon optical shielding of collisions between ultracold polar molecules

authored by
Charbel Karam, Romain Vexiau, Nadia Bouloufa-Maafa, Olivier Dulieu, Maxence Lepers, Mara Meyer Zum Alten Borgloh, Silke Ospelkaus, Leon Karpa
Abstract

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 one-photon optical shielding [Xie, Phys. Rev. Lett. 125, 153202 (2020)0031-900710.1103/PhysRevLett.125.153202], this scheme avoids heating of the molecular gas due to photon scattering. The proposed protocol, exemplified for Na23K39, should be applicable to a large class of polar diatomic molecules.

Organisation(s)
CRC 1227 Designed Quantum States of Matter (DQ-mat)
Institute of Quantum Optics
QuantumFrontiers
External Organisation(s)
Université Paris-Saclay
Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB)
Type
Article
Journal
Physical Review Research
Volume
5
ISSN
2643-1564
Publication date
03.08.2023
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
General Physics and Astronomy
Electronic version(s)
https://doi.org/10.1103/PhysRevResearch.5.033074 (Access: Open)