Phase coherence and control of stored photonic information
- 14 February 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 65 (3) , 031802
- https://doi.org/10.1103/physreva.65.031802
Abstract
We report the demonstration of phase coherence and control for the recently developed “light-storage” technique. Specifically, we employ a dynamic form of electromagnetically induced transparency to bring the group velocity of a light pulse to zero, thereby mapping the photonic information into an ensemble spin coherence in warm Rb vapor. We then apply a pulsed magnetic field to vary the phase of the atomic spin excitations and map the altered information back into light. We detect the resultant phase shift in an optical interferometric measurement, thus confirming that the storage process preserves phase coherence.Keywords
All Related Versions
This publication has 22 references indexed in Scilit:
- Experimental long-lived entanglement of two macroscopic objectsNature, 2001
- Observation of coherent optical information storage in an atomic medium using halted light pulsesNature, 2001
- Vacuum-Stimulated Raman Scattering Based on Adiabatic Passage in a High-Finesse Optical CavityPhysical Review Letters, 2000
- The Physical Implementation of Quantum ComputationFortschritte der Physik, 2000
- Dark-State Polaritons in Electromagnetically Induced TransparencyPhysical Review Letters, 2000
- Entanglement of Atomic Ensembles by Trapping Correlated Photon StatesPhysical Review Letters, 2000
- The Atom-Cavity Microscope: Single Atoms Bound in Orbit by Single PhotonsScience, 2000
- Spin Squeezed Atoms: A Macroscopic Entangled Ensemble Created by LightPhysical Review Letters, 1999
- Spin Squeezing in an Ensemble of Atoms Illuminated with Squeezed LightPhysical Review Letters, 1997
- Quantum State Transfer and Entanglement Distribution among Distant Nodes in a Quantum NetworkPhysical Review Letters, 1997