Collapses and revivals of stored orbital angular momentum of light in a cold-atom ensemble

2009/01/07 by D. Moretti, D. Felinto, J. W. R. Tabosa
Physics and Astronomy · #Angular momentum #Atom (system on chip) #Atomic physics #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Orbital Angular Momentum in Optics #Physics #Quantum #Quantum electrodynamics #Quantum mechanics #Quantum optics and atomic interactions #Total angular momentum quantum number #Ultracold atom #quant-ph

paper · pdf · doi:10.1103/physreva.79.023825

published as Physical Review A, 79, 023825 (2009) · Submitted to Physical Review A

arxiv created 2009/01/07 · openalex publication_date 2009/02/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report on the storage of orbital angular momentum of light in a cold ensemble of cesium atoms. We employ Bragg diffraction to retrieve the stored optical information impressed into the atomic coherence by the incident light fields. The stored information can be manipulated by an applied magnetic field and we were able to observe collapses and revivals due to the rotation of the stored atomic Zeeman coherence for times longer than 15 \ensuremathμs.

Citations

• Entanglement of orbital angular momentum states between an ensemble of cold atoms and a photon
• Dynamics of Bragg diffraction in a stored light grating in cold atoms
• Electromagnetically induced transparency: Optics in coherent media
• Light’s Orbital Angular Momentum
• Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes
• Image storage in hot vapors