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Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 15469–15476

Differential-phase-shift quantum secret sharing

K. Inoue, T. Ohashi, T. Kukita, K. Watanabe, S. Hayashi, T. Honjo, and H. Takesue  »View Author Affiliations

Optics Express, Vol. 16, Issue 20, pp. 15469-15476 (2008)

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A quantum secret sharing (QSS) protocol based on a differential-phase-shift scheme is proposed, which quantum mechanically provides a full secret key to one party and partial keys to two other parties. A weak coherent pulse train is utilized instead of individual photons as in conventional schemes. Compared with previous QSS protocols, the present one features a simple setup, is suitable for fiber transmission, and offers the possibility for a high key creation rate. An experiment is also carried out to demonstrate the operation.

© 2008 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics

ToC Category:
Quantum Optics

Original Manuscript: August 1, 2008
Revised Manuscript: September 10, 2008
Manuscript Accepted: September 10, 2008
Published: September 16, 2008

K. Inoue, T. Ohashi, T. Kukita, K. Watanebe, S. Hayashi, T. Honjo, and H. Takesue, "Differential-phase-shift quantum secret sharing," Opt. Express 16, 15469-15476 (2008)

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