Measurement-device-independent quantum key distribution of multiple degrees of freedom of a single photon

• URL: http://arxiv.org/abs/2009.09555v1
• Date: Mon, 21 Sep 2020 00:57:27 GMT
• Title: Measurement-device-independent quantum key distribution of multiple degrees of freedom of a single photon
• Authors: Yu-Fei Yan, Lan Zhou, Wei Zhong, Yu-Bo Sheng
• Abstract summary: Measurement-device-independent quantum key distribution (MDI-QKD) provides us a powerful approach to resist all attacks at detection side. In this paper, we provide an efficient approach to increase the key generation rate of MDI-QKD by adopting multiple degrees of freedom (DOFs) of single photons to generate keys.
• Score: 6.887504495088555
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Measurement-device-independent quantum key distribution (MDI-QKD) provides us a powerful approach to resist all attacks at detection side. Besides the unconditional security, people also seek for high key generation rate, but MDI-QKD has relatively low key generation rate. In this paper, we provide an efficient approach to increase the key generation rate of MDI-QKD by adopting multiple degrees of freedom (DOFs) of single photons to generate keys. Compared with other high-dimension MDI-QKD protocols encoding in one DOF, our protocol is more flexible, for our protocol generating keys in independent subsystems and the detection failure or error in a DOF not affecting the information encoding in other DOFs. Based on above features, our MDI-QKD protocol may have potential application in future quantum communication field.

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