Efficient quantum private queries based on quantum key distribution with pulse-position modulation

Hong Lai*, Mingxing Luo, Yongjian Xu, Josef Pieprzyk, Lei Pan, Jun Zhang, Mehmet A. Orgun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
7 Downloads (Pure)

Abstract

Up to now, there are only a few studies on the application of pulse position modulation (PPM) and orbital angular momentum (OAM) in measurement-device-independent (MDI) quantum private queries (QPQ) protocols. Given this, we design a QPQ protocol based on PPM-OAM and MDI-QKD (quantum key distribution), i.e. PPM-OAM-MDI-QPQ protocol, which avoids the dependence of the basis besides inheriting the advantages of MDI-QPQ. Our PPM-OAM-MDI-QPQ protocol can achieve longer-distance QPQ and speed up private queries. Moreover, our PPM-OAM-MDI-QPQ protocol can eliminate the basis-dependent flaw and demonstrate a useful technique for high-rate satellite-based QPQ. Meanwhile, our protocol applies quantum memory to achieve the function of a quantum repeater, achieving much longer-distance QPQ.

Original languageEnglish
Article number055201
Pages (from-to)1-7
Number of pages7
JournalLaser Physics
Volume29
Issue number5
DOIs
Publication statusPublished - May 2019

Keywords

  • basis-dependent flaw
  • orbital angular momentum
  • pulse position modulation
  • quantum private queries

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