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arXiv 1010.2104quant-ph
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量子光波形转换

Quantum optical waveform conversion

D Kielpinski, JF Corney, HM Wiseman

摘要:

目前提出的长距离量子通信架构依赖于通过光通信信道连接的量子处理器网络[1,2]。这种网络的关键资源是基于物质的量子系统与用于信息传输的量子光场的纠缠。这些材料系统的光相互作用带宽是光通信可用带宽的一小部分,并且量子光输出脉冲的时间形状通常不适合长距离传输。在这里,我们证明了量子光脉冲与光谱定制的经典场的非线性混合可以将量子脉冲压缩100倍以上,并灵活地重塑其时间波形,同时保留所有量子特性,包括纠缠。波形转换可以与量子光发射器的先驱阵列一起使用,以实现光通信的全数据速率的量子通信。

英文摘要:

Currently proposed architectures for long-distance quantum communication rely on networks of quantum processors connected by optical communications channels [1,2]. The key resource for such networks is the entanglement of matter-based quantum systems with quantum optical fields for information transmission. The optical interaction bandwidth of these material systems is a tiny fraction of that available for optical communication, and the temporal shape of the quantum optical output pulse is often poorly suited for long-distance transmission. Here we demonstrate that nonlinear mixing of a quantum light pulse with a spectrally tailored classical field can compress the quantum pulse by more than a factor of 100 and flexibly reshape its temporal waveform, while preserving all quantum properties, including entanglement. Waveform conversion can be used with heralded arrays of quantum light emitters to enable quantum communication at the full data rate of optical telecommunications.

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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