Single Photon Quantum Key Distribution Using Phase-Squeezed State

Hyun Seung Moon, Jun Heo

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Generation and application of squeezed light source has been the interest in the field of quantum optical experiments, especially with regards to the field of quantum key distribution. In this paper, a method using phase-squeezed state as the input state of the single photon quantum key distribution protocol is introduced, and the rate of the gained secure key of the proposed method after the post-processing techniques is analyzed. Compared to the conventional quantum key distribution protocol using weak coherent light source as the single photon source, it is shown that in the proposed method there are significant improvements in both the transmittable distance and the gained secure key rate.

Original languageEnglish
Title of host publicationICTC 2020 - 11th International Conference on ICT Convergence
Subtitle of host publicationData, Network, and AI in the Age of Untact
PublisherIEEE Computer Society
Number of pages4
ISBN (Electronic)9781728167589
Publication statusPublished - 2020 Oct 21
Event11th International Conference on Information and Communication Technology Convergence, ICTC 2020 - Jeju Island, Korea, Republic of
Duration: 2020 Oct 212020 Oct 23

Publication series

NameInternational Conference on ICT Convergence
ISSN (Print)2162-1233
ISSN (Electronic)2162-1241


Conference11th International Conference on Information and Communication Technology Convergence, ICTC 2020
Country/TerritoryKorea, Republic of
CityJeju Island

Bibliographical note

Funding Information:
This research was supported by Korea Institute of Science and Technology Information(KISTI).REFERENCES

Publisher Copyright:
© 2020 IEEE.

Copyright 2020 Elsevier B.V., All rights reserved.


  • quantum key distribution
  • squeezed light

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications


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