Spacetime effects on satellite-based quantum communications

被引：93

作者：

Bruschi, David Edward ^{[1
]}

Ralph, Timothy C. ^{[2
]}

Fuentes, Ivette ^{[3
]}

Jennewein, Thomas ^{[4
,5
]}

Razavi, Mohsen ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

[3] Univ Nottingham, Sch Mat Sci, Nottingham NG7 2RD, England

[4] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

[5] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 04期

基金：

加拿大自然科学与工程研究理事会; 英国工程与自然科学研究理事会;

关键词：

ATOMIC ENSEMBLES; TELEPORTATION; CRYPTOGRAPHY;

D O I：

10.1103/PhysRevD.90.045041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：13

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