Reference-frame-independent quantum-key-distribution server with a telecom tether for an on-chip client

P. Zhang*, K. Aungskunsiri, E. Martín-López, J. Wabnig, M. Lobino, R. W. Nock, J. Munns, D. Bonneau, P. Jiang, H. W. Li, A. Laing, J. G. Rarity, A. O. Niskanen, M. G. Thompson, J. L. O'Brien

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

60 Citations (Scopus)
238 Downloads (Pure)

Abstract

We demonstrate a client-server quantum key distribution (QKD) scheme. Large resources such as laser and detectors are situated at the server side, which is accessible via telecom fiber to a client requiring only an on-chip polarization rotator, which may be integrated into a handheld device. The detrimental effects of unstable fiber birefringence are overcome by employing the reference-frame-independent QKD protocol for polarization qubits in polarization maintaining fiber, where standard QKD protocols fail, as we show for comparison. This opens the way for quantum enhanced secure communications between companies and members of the general public equipped with handheld mobile devices, via telecom-fiber tethering.

Original languageEnglish
Article number130501
Number of pages6
JournalPhysical Review Letters
Volume112
Issue number13
DOIs
Publication statusPublished - 2 Apr 2014

Keywords

  • SINGLE-PHOTON DETECTORS
  • CRYPTOGRAPHY
  • SECURITY
  • PLUG
  • COMMUNICATION
  • CONVERTER
  • ALIGNMENT
  • PROTOCOL
  • SYSTEMS

Projects

Fabricating a photonic quantum computer.

O'Brien, J. L.

1/04/1331/03/18

Project: Research

Cite this

Zhang, P., Aungskunsiri, K., Martín-López, E., Wabnig, J., Lobino, M., Nock, R. W., Munns, J., Bonneau, D., Jiang, P., Li, H. W., Laing, A., Rarity, J. G., Niskanen, A. O., Thompson, M. G., & O'Brien, J. L. (2014). Reference-frame-independent quantum-key-distribution server with a telecom tether for an on-chip client. Physical Review Letters, 112(13), [130501]. https://doi.org/10.1103/PhysRevLett.112.130501