Related Experiment Video
Updated: Aug 30, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Polarization squeezing with cold atoms
1Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Ecole Normale Supérieure et CNRS, Case 74, 4 place Jussieu, 75252 Paris Cedex 05, France.
Abstract:
We study the interaction of a nearly resonant linearly polarized laser beam with a cloud of cold cesium atoms in a high finesse optical cavity. We show theoretically and experimentally that the cross-Kerr effect due to the saturation of the optical transition produces quadrature squeezing on both the mean field and the orthogonally polarized vacuum mode. An interpretation of this vacuum squeezing as polarization squeezing is given and a method for measuring quantum Stokes parameters for weak beams via a local oscillator is developed.
Related Concept Videos
Potential Due to a Polarized Object
Dielectric Polarization in a Capacitor
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Atomic Nuclei: Nuclear Relaxation Processes
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...

