Entanglement assisted time-energy QKD employing Franson interferometers and cavity quantum electrodynamics (CQED) principles

Ivan B. Djordjevic, Yequn Zhang

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

1 Scopus citations

Abstract

In this paper, we propose several entanglement assisted QKD protocols based on time-energy encoding with the number of mutually unbiased bases (MUBs) larger than two. We describe how to implement these protocols based on: (i) optical FFT device implemented in integrated optics with the help of Franson interferometers and (ii) Weyl gate. We also describe the corresponding weak-coherent state-based protocol. By employing the N-dimensional pulse position modulation (ND-PPM) approach, the secret key rate of single photon pulse per signaling interval protocols can be improved by N/log2N times. However, the corresponding entanglement assisted protocols require the use of cavity quantum electrodynamics (CQED) principles to further entangle single photon pulse per frame state. We then analyze the security of the proposed protocols and provide the finite secret key rates in the presence of various imperfections including background errors and timing jitter, for which we propose the K-neighbor model. Finally, we provide the improvements in secret key rates of proposed protocol over conventional two-base time-energy QKD protocol.

Original languageEnglish (US)
Title of host publicationAdvances in Photonics of Quantum Computing, Memory, and Communication VIII
EditorsPhilip R. Hemmer, Zameer U. Hasan, Hwang Lee, Alan L. Migdall
PublisherSPIE
ISBN (Electronic)9781628414677
DOIs
StatePublished - Jan 1 2015
EventAdvances in Photonics of Quantum Computing, Memory, and Communication VIII - San Francisco, United States
Duration: Feb 10 2015Feb 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9377
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAdvances in Photonics of Quantum Computing, Memory, and Communication VIII
CountryUnited States
CitySan Francisco
Period2/10/152/12/15

Keywords

  • Cavity quantum electrodynamics (CQED)
  • Franson Interferometers
  • Optical FFT
  • Quantum key distribution (QKD)
  • Time-energy QKD

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Djordjevic, I. B., & Zhang, Y. (2015). Entanglement assisted time-energy QKD employing Franson interferometers and cavity quantum electrodynamics (CQED) principles. In P. R. Hemmer, Z. U. Hasan, H. Lee, & A. L. Migdall (Eds.), Advances in Photonics of Quantum Computing, Memory, and Communication VIII [93770L] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9377). SPIE. https://doi.org/10.1117/12.2081131