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arXiv 0908.2348quant-ph
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单光子水平的双波长固态存储器

Telecommunication-wavelength solid-state memory at the single photon level

Björn Lauritzen, Jiří Minář, Hugues de Riedmatten, Mikael Afzelius, Nicolas Sangouard, Christoph Simon, Nicolas Gisin

摘要:

我们实验证明了在固体中的电信波长的弱相干光场的存储和检索。在2.6 K下,在掺铒Y $_2$ SiO $_5$晶体中将单光子水平的光脉冲存储长达600 ns的时间,并按需检索。存储器是基于光子回波与受控的可逆非均匀加宽,这是第一次在单光子水平上实现。这是通过使用线性斯塔克效应的外部场梯度来实现的。该实验证明了在电信波长处的单光子的固态量子存储器的可行性,这将代表量子信息科学中的重要资源。

英文摘要:

We demonstrate experimentally the storage and retrieval of weak coherent light fields at telecommunication wavelengths in a solid. Light pulses at the single photon level are stored for a time up to 600 ns in an Erbium-doped Y$_2$SiO$_5$ crystal at 2.6 K and retrieved on demand. The memory is based on photon echoes with controlled reversible inhomogeneous broadening, which is realized here for the first time at the single photon level. This is implemented with an external field gradient using the linear Stark effect. This experiment demonstrates the feasibility of a solid state quantum memory for single photons at telecommunication wavelengths, which would represent an important resource in quantum information science.

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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