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On-demand single-photon sources via quantum blockade and applications in decoy-state quantum key distribution

  • Ao Li
  • , Tian Chen
  • , Yiheng Zhou
  • , Xiangbin Wang*
  • *Corresponding author for this work
  • Tsinghua University
  • University of Science and Technology of China
  • SAICT

Research output: Contribution to journalArticlepeer-review

Abstract

Quantum blockades as a nonlinear quantum optical process have been well studied in recent years. Using the quantum trajectory method, we calculate and discuss the output photon number distributions of a single-photon blockade process in a Kerr nonlinear dissipative resonator, revealing that the probability of the single-photon state can be optimized. Then we show through numerical simulations that such a quasi-single-photon source can drastically raise the key rate in the decoy-state quantum key distribution.

Original languageEnglish
Pages (from-to)1921-1924
Number of pages4
JournalOptics Letters
Volume41
Issue number9
DOIs
Publication statusPublished - 1 May 2016
Externally publishedYes

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