TY - JOUR
T1 - Unconditionally secure quantum key distribution with relatively strong signal pulse
AU - Tamaki, Kiyoshi
PY - 2008/3/26
Y1 - 2008/3/26
N2 - We propose an unconditionally secure quantum key distribution protocol, which uses a relatively strong signal pulse. While our protocol shares similar security bases as the Bennett 1992 protocol with a strong reference pulse, our scheme uses a smaller number of detectors and it is robust against Rayleigh scattering in an optical fiber. We derive a lower bound of secret key generation rate of our protocol and show that our protocol can cover relatively long distances, assuming precise phase modulations and stable interferometers.
AB - We propose an unconditionally secure quantum key distribution protocol, which uses a relatively strong signal pulse. While our protocol shares similar security bases as the Bennett 1992 protocol with a strong reference pulse, our scheme uses a smaller number of detectors and it is robust against Rayleigh scattering in an optical fiber. We derive a lower bound of secret key generation rate of our protocol and show that our protocol can cover relatively long distances, assuming precise phase modulations and stable interferometers.
UR - http://www.scopus.com/inward/record.url?scp=41549144897&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.77.032341
DO - 10.1103/PhysRevA.77.032341
M3 - 学術論文
AN - SCOPUS:41549144897
SN - 1050-2947
VL - 77
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 032341
ER -