Spacetime effects on satellite-based quantum communications

David Edward Bruschi, Timothy C. Ralph, Ivette Fuentes, Thomas Jennewein, and Mohsen Razavi
Phys. Rev. D 90, 045041 – Published 28 August 2014

Abstract

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.

  • Figure
  • Figure
  • Received 26 April 2014

DOI:https://doi.org/10.1103/PhysRevD.90.045041

© 2014 American Physical Society

Authors & Affiliations

David Edward Bruschi1,*, Timothy C. Ralph2, Ivette Fuentes3, Thomas Jennewein4, and Mohsen Razavi1

  • 1School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
  • 2School of Mathematics and Physics, University of Queensland, Brisbane, Queensland 4072, Australia
  • 3School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
  • 4Institute of Quantum Computing and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, Canada

  • *Present address: Racah Institute of Physics and Quantum Information Science Centre, the Hebrew University of Jerusalem, Givat Ram, 91904 Jerusalem, Israel.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 4 — 15 August 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×