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arXiv quant-ph/0603192quant-ph
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用于量子态存储的掺铒硅酸盐光纤的光相干特性研究

Investigations of Optical Coherence Properties in an Erbium-doped Silicate Fiber for Quantum State Storage

Matthias U. Staudt, Sara R. Hastings-Simon, Mikael Afzelius, Didier Jaccard, Wolfgang Tittel, Nicolas Gisin

摘要:

利用光谱烧孔和光子回波研究了掺铒硅酸盐光纤中$μ$ m通信跃迁的光相干特性。我们发现退相干时间高达3.8 $μ$ s在磁场为2.2特斯拉和温度为150 mK。观察到强磁场依赖的光学退相,并认为这是由电子Er $^{3+}$自旋和玻璃中隧穿模式的磁矩之间的相互作用引起的。此外,我们还观察到铒与$^{27}$ Al宿主核超超精细相互作用产生的烧孔谱精细结构。结果表明,掺铒硅酸盐光纤是一种很有希望的量子态存储材料.

英文摘要:

We studied optical coherence properties of the 1.53 $μ$m telecommunication transition in an Er$^{3+}$-doped silicate optical fiber through spectral holeburning and photon echoes. We find decoherence times of up to 3.8 $μ$s at a magnetic field of 2.2 Tesla and a temperature of 150 mK. A strong magnetic-field dependent optical dephasing was observed and is believed to arise from an interaction between the electronic Er$^{3+}$ spin and the magnetic moment of tunneling modes in the glass. Furthermore, we observed fine-structure in the Erbium holeburning spectrum originating from superhyperfine interaction with $^{27}$Al host nuclei. Our results show that Er$^{3+}$-doped silicate fibers are promising material candidates for quantum state storage.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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