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Study on quantum cryptography using orbital angular momentum states of photons

Su Zhi-Kun Wang Fa-Qiang Lu Yi-Qun Jin Rui-Bo Liang Rui-Sheng Liu Song-Hao

Study on quantum cryptography using orbital angular momentum states of photons

Su Zhi-Kun, Wang Fa-Qiang, Lu Yi-Qun, Jin Rui-Bo, Liang Rui-Sheng, Liu Song-Hao
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  • Abstract views:  3709
  • PDF Downloads:  1417
  • Cited By: 0
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  • Received Date:  18 June 2007
  • Accepted Date:  21 August 2007
  • Published Online:  28 May 2008

Study on quantum cryptography using orbital angular momentum states of photons

  • 1. 华南师范大学信息光电子科技学院,光子信息技术广东省高校重点实验室,广州 510006

Abstract: We present a simple quantum cryptographic scheme that encodes information in two orthogonal orbital angular momentum states. The states used in this scheme are invariant under rotations of the propagation direction,making this implementation independent of the alignment between the reference frames of Alice and Bob. Besides,since the two orbital angular momentum states are orthogonal,100% use of the photons is attained,which increases the key generation rate of the protocol.

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