Six-State Quantum Key Distribution Using Photons with Orbital Angular Momentum
LI Jun-Lin1**, WANG Chuan2
1Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084 2School of Science and Key Laboratory of Optical Communication and Lightwave Technologies, Beijing University of Posts and Telecommunications, Beijing 100876
Six-State Quantum Key Distribution Using Photons with Orbital Angular Momentum
LI Jun-Lin1**, WANG Chuan2
1Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084 2School of Science and Key Laboratory of Optical Communication and Lightwave Technologies, Beijing University of Posts and Telecommunications, Beijing 100876
摘要A new implementation of high-dimensional quantum key distribution (QKD) protocol is discussed. Using three mutual unbiased bases, we present a d−level six-state QKD protocol that exploits the orbital angular momentum with the spatial mode of the light beam. The protocol shows that the feature of a high capacity since keys are encoded using photon modes in d-level Hilbert space. The devices for state preparation and measurement are also discussed. This protocol has high security and the alignment of shared reference frames is not needed between sender and receiver.
Abstract：A new implementation of high-dimensional quantum key distribution (QKD) protocol is discussed. Using three mutual unbiased bases, we present a d−level six-state QKD protocol that exploits the orbital angular momentum with the spatial mode of the light beam. The protocol shows that the feature of a high capacity since keys are encoded using photon modes in d-level Hilbert space. The devices for state preparation and measurement are also discussed. This protocol has high security and the alignment of shared reference frames is not needed between sender and receiver.
LI Jun-Lin**;WANG Chuan. Six-State Quantum Key Distribution Using Photons with Orbital Angular Momentum[J]. 中国物理快报, 2010, 27(11): 110303-110303.
LI Jun-Lin**, WANG Chuan. Six-State Quantum Key Distribution Using Photons with Orbital Angular Momentum. Chin. Phys. Lett., 2010, 27(11): 110303-110303.
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