Spacetime effects on satellite-based quantum communications
Spacetime effects on satellite-based quantum communications
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DOI：
10.1103/physrevd.90.045041
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发表时间：
2014-08-28
影响因子：
5
通讯作者：
Razavi, Mohsen
中科院分区：
文献类型：
--
作者：
Bruschi, David Edward;Ralph, Timothy C.;Razavi, Mohsen
研究了时空弯曲对天基量子通信协议的影响。我们分析了在特定的纠缠分配协议中需要交换单个光子的任务，或者在连续变量量子密钥分配方案中需要光束的任务。我们发现，重力影响了光子的传播，从而增加了信息传输通道的额外噪声。其影响可以用目前的技术来衡量。
We investigate the consequences of space-time being curved on space-based quantum communication protocols. We analyze tasks that require either the exchange of single photons in a certain entanglement distribution protocol or beams of light in a continuous-variable quantum key distribution scheme. We find that gravity affects the propagation of photons, therefore adding additional noise to the channel for the transmission of information. The effects could be measured with current technology.