In:
International Journal of Quantum Information, World Scientific Pub Co Pte Ltd, Vol. 17, No. 02 ( 2019-03), p. 1950012-
Abstract:
Recently, a novel quantum-key-distribution (QKD) protocol, called Round-robin-differential-phase-shift (RRDPS) QKD, has been proposed to share a secure key without monitoring the signal disturbance. In this paper, we propose a decoy state RRDPS-QKD protocol with odd coherent states (OCS). We implement a one-intensity decoy state method into the RRDPS-QKD with OCS to estimate the key rate. The results show that both the maximum transmission distance and the key rate of our protocol are significantly improved. Moreover, only one-intensity decoy state is sufficient for the protocol to approach the asymptotic limit with infinite decoy states.
Type of Medium:
Online Resource
ISSN:
0219-7499
,
1793-6918
DOI:
10.1142/S0219749919500126
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2019
