Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Cavity-induced spin-orbit coupled Bose-Einstein condensation: A new approach for exploring cold atoms

Jun 17, 2015, 9:15 AM
CCIS L2-200 (University of Alberta)

CCIS L2-200

University of Alberta

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition) Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) W1-10 Quantum Optics and Cavity QED (DAMOPC) / Optique quantique et ÉDQ en cavité (DPAMPC)


Farokh Mivehvar (University of Calgary)


The atom-photon interaction is significantly amplified when the radiation field is confined inside a high-finesse cavity, resulting in a complex, coupled dynamics of the quantized matter and radiation fields. This coupled dynamics in turn mediates long-ranged interactions between atoms. Here we demonstrate how to simultaneously induce spin-orbit (SO) coupling and long-ranged interactions in a Bose-Einstein condensation (BEC) using two counter-propagating modes of a ring cavity. The interplay between the standard two-body and cavity-mediated interactions determines the ground state and elementary excitations of the SO-coupled BEC. The ground state is either a plane wave or stripe phase, where in the latter case the density exhibits spatial modulations along the SO coupling direction. This opens up a possible new experimental approach for exploring quantum gases by tuning cavity parameters instead of using Feshbach resonance techniques.

Primary author

Farokh Mivehvar (University of Calgary)


David Feder (University of Calgary)

Presentation materials