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Quantum Key Distribution and Quantum Networking based on the Realistic Devices
2020/07/19
Date: 19-Jun-2020 Time: 14:00-15:00
Venue: Tencent
Speaker: Dr. Lai ZHOU (Division of Quantum Materials and Devices)
Abstract:
Quantum communication is the new research field with the combination of quantum theory and the information theory. Quantum Key Distribution (QKD) has been demonstrated by many experiments and will be implemented in our everyday life. Currently, the key problem for the QKD is to propagate in longer distance, generate the secure key with higher speed, and make the system more compact. In this talk, I will show how the researchers solve the secure problem resulted from the imperfect device in the whole system. For example, BB84, the first QKD protocol, and Twin-field-QKD, the up to date protocol to overcome the propagation limitation. I will also show some practical quantum networks in the world, and discuss the benefit of the silicon photonic chip in the system miniaturization.
About the Speaker:
Dr. Lai Zhou received his B.S. degree and the Ph.D. degree from the Tsinghua University in 2013 and 2018, respectively. He worked in the University of Oxford as the Postdoctoral Research Fellow from 2019 and then joined the BAQIS as the Research Assistant at the beginning of the 2020. Dr. Lai Zhou dedicated to the QKD system, quantum networking and the integrated photonic chip.
Abstract:
Quantum communication is the new research field with the combination of quantum theory and the information theory. Quantum Key Distribution (QKD) has been demonstrated by many experiments and will be implemented in our everyday life. Currently, the key problem for the QKD is to propagate in longer distance, generate the secure key with higher speed, and make the system more compact. In this talk, I will show how the researchers solve the secure problem resulted from the imperfect device in the whole system. For example, BB84, the first QKD protocol, and Twin-field-QKD, the up to date protocol to overcome the propagation limitation. I will also show some practical quantum networks in the world, and discuss the benefit of the silicon photonic chip in the system miniaturization.
About the Speaker:
Dr. Lai Zhou received his B.S. degree and the Ph.D. degree from the Tsinghua University in 2013 and 2018, respectively. He worked in the University of Oxford as the Postdoctoral Research Fellow from 2019 and then joined the BAQIS as the Research Assistant at the beginning of the 2020. Dr. Lai Zhou dedicated to the QKD system, quantum networking and the integrated photonic chip.