Physics – Quantum Physics
Scientific paper
2004-08-16
Physics
Quantum Physics
3 pages, one figure
Scientific paper
Using quantum mechanics, secure direct communication between distant parties can be performed. Over a noisy quantum channel, quantum privacy amplification is a necessary step to ensure the security of the message. In this paper, we present a quantum privacy amplification scheme for quantum secure direct communication using single photons. The quantum privacy amplification procedure contains two control-not gates and a Hadamard gate. After the unitary gate operations, a measurement is performed and one photon is retained. The retained photon carries the state information of the discarded photon, and hence reduces the information leakage. The procedure can be performed recursively so that the information leakage can be reduced to any arbitrarily low level.
Deng Fu-Guo
Long Gui Lu
No associations
LandOfFree
Quantum privacy amplification for quantum secure direct communication does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum privacy amplification for quantum secure direct communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum privacy amplification for quantum secure direct communication will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-580253