Related Experiment Video
Updated: Dec 4, 2025
07:45
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
11.2K
Controlled Transport of Stored Light.
Wei Li1,2, Parvez Islam2, Patrick Windpassinger2
1School of Instrumentation and Optoelectronic Engineering, Beihang University, 100191 Beijing, China.
Physical Review Letters
|October 23, 2020
Summary
Researchers demonstrated controlled transport of stored light in quantum memories, showing minimal impact on coherence. This advance paves the way for novel quantum devices like optical racetrack memories.
Area of Science:
- Quantum physics
- Quantum information science
Background:
- Quantum information manipulation, storage, and retrieval are crucial for quantum communication and computing.
- Quantum memories using cold atomic samples offer high storage efficiency and long lifetimes.
Purpose of the Study:
- To demonstrate controlled transport of stored light in a quantum memory system.
- To assess the impact of the transport process on the coherence of stored quantum information.
Main Methods:
- Utilized cold atomic samples as the storage medium for light.
- Implemented a system for controlled manipulation and transport of stored light.
- Analyzed the dynamics of the transport process and its effect on coherence.
Main Results:
- Successfully demonstrated controlled transport of stored light over a distance of 1.2 mm.
- Observed that the transport process and its dynamics had a minor effect on the coherence of the stored light.
Conclusions:
- The controlled transport of stored light in quantum memories is feasible with minimal coherence loss.
- This technique can be extended for longer distances and multiple storage sections.
- Enables the development of advanced quantum devices, including optical racetrack memories and quantum registers.
