Hua Lu

Publications (2)7.37 Total impact

• Source

  Available from: ArXiv

  Article: Unconditional security proof of a deterministic quantum key distribution with a two-way quantum channel

  Hua Lu, Chi-Hang Fred Fung, Xiongfeng Ma, Qing-yu Cai
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  ABSTRACT: In a deterministic quantum key distribution (DQKD) protocol with a two-way quantum channel, Bob sends a qubit to Alice who then encodes a key bit onto the qubit and sends it back to Bob. After measuring the returned qubit, Bob can obtain Alice's key bit immediately, without basis reconciliation. Since an eavesdropper may attack the qubits traveling on either the Bob-Alice channel or the Alice-Bob channel, the security analysis of DQKD with a two-way quantum channel is complicated and its unconditional security has been controversial. This paper presents a security proof of a single-photon four-state DQKD against general attacks.
  10/2011;
• Article: Comment on "Quantum key distribution with classical Bob".

  Yong-gang Tan, Hua Lu, Qing-yu Cai
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  ABSTRACT: A Comment on the Letter by Michel Boyer, Dan Kenigsberg, and Tal Mor, [Phys. Rev. Lett. 99, 140501 (2007)10.1103/PhysRevLett.99.140501]. The authors of the Letter offer a Reply.
  Physical Review Letters 04/2009; 102(9):098901; author reply 098902. · 7.37 Impact Factor