Measurement-Device-Independent Quantum Key Distribution with Two-Way Local Operations and Classical Communications
Yong-Gang Tan** , Qiang Liu
Physics and Information Engineering Department, Luoyang Normal College, Luoyang 471022
Abstract ：Measurement-device-independent quantum key distribution (MDI-QKD) is proven to be immune to all the detector side channel attacks. With two symmetric quantum channels, the maximal transmission distance can be doubled when compared with the prepare-and-measure QKD. An interesting question is whether the transmission distance can be extended further. In this work, we consider the contributions of the two-way local operations and classical communications to the key generation rate and transmission distance of the MDI-QKD. Our numerical results show that the secure transmission distances are increased by about 12 km and 8 km when the 1 B and the 2 B steps are implemented, respectively.
收稿日期: 2016-05-18
出版日期: 2016-09-30
:
03.67.Dd
(Quantum cryptography and communication security)
03.67.Hk
(Quantum communication)
03.67.Mn
(Entanglement measures, witnesses, and other characterizations)
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2016, Vol. 33 
