期刊
PHYSICAL REVIEW A
卷 85, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.85.022318
关键词
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资金
- German Excellence Initiative through the Nanosystems Initiative Munich
- Deutsche Forschungsgemeinschaft [SFB 631]
A scheme based on electromagnetically induced transparency is used to store light in a Bose-Einstein condensate. In this process, a photonic polarization qubit is stored in atomic Zeeman states. The performance of the storage process is characterized and optimized. The average process fidelity is 1.000 +/- 0.004. For long storage times, temporal fluctuations of the magnetic field reduce this value, yielding a lifetime of the fidelity of (1.1 +/- 0.2) ms. The write-read efficiency of the pulse energy can reach 0.53 +/- 0.05.
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