Abstract
A high-storage efficiency and long-live quantum memory for photons is an essential component for the information processing in long-distance quantum communication and optical quantum computation. We demonstrated a 78% storage efficiency (SE) of coherent light pulses with a cold atomic medium based on the effect of electromagnetically induced transparency (EIT). We also obtained a large fractional delay of 74 at 50% SE, which is the best record to date. The measured fidelity of the memory is better than 90%. The results suggest the EIT light-matter interface can be readily applied to single-photon quantum states. Our work greatly advances the technology of EIT-based quantum memory for the practical quantum information applications.
Original language | English |
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Title of host publication | Advances in Slow and Fast Light VII |
Publisher | SPIE |
Volume | 8998 |
ISBN (Print) | 9780819499110 |
DOIs | |
Publication status | Published - 2014 |
Event | Advances in Slow and Fast Light VII - San Francisco, CA, United States Duration: 2014 Feb 2 → 2014 Feb 5 |
Other
Other | Advances in Slow and Fast Light VII |
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Country/Territory | United States |
City | San Francisco, CA |
Period | 14-02-02 → 14-02-05 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering