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arXiv 1201.4441quant-ph
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光子偏振量子比特的可靠固态量子存储器的实现

Realization of reliable solid-state quantum memory for photonic polarization-qubit

Zong-Quan Zhou, Wei-Bin Lin, Ming Yang, Chuan-Feng Li, Guang-Can Guo

摘要:

忠实地存储未知的量子光态对于先进的量子通信和分布式量子计算应用是必不可少的。所需的量子存储器必须具有高保真度,以提高量子网络的性能。在这里,我们报告的光子偏振态的可逆转移到集体原子激发在一个紧凑的固态设备。量子存储器基于稀土离子掺杂晶体中的原子频率梳(AFC)。对单光子级相干脉冲的存储和恢复过程,我们获得了高达0.998的过程保真度。这种可靠的量子存储器是基于固态设备的量子网络的关键一步。

英文摘要:

Faithfully storing an unknown quantum light state is essential to advanced quantum communication and distributed quantum computation applications. The required quantum memory must have high fidelity to improve the performance of a quantum network. Here we report the reversible transfer of photonic polarization states into collective atomic excitation in a compact solid-state device. The quantum memory is based on an atomic frequency comb (AFC) in rare-earth ion doped crystals. We obtain up to 0.998 process fidelity for the storage and retrieval process of single-photon-level coherent pulse. This reliable quantum memory is a crucial step toward quantum networks based on solid-state devices.

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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