393 citations · 2.2k across the 26 of their papers we have counts for
26 papers
The practical issues of side-channel-secure quantum key distribution
Cong Jiang, Xiao-Long Hu, Zong-Wen Yu +2
Quantum Key Distribution (QKD) leverages the principles of quantum mechanics to provide theoretically unconditional security for cryptographic key sharing. However, practical imple…
Side-channel-secure quantum key distribution
Cong Jiang, Xiao-Long Hu, Zong-Wen Yu +1
We present a result of side-channel-secure (SCS) quantum key distribution (QKD) under fully realistic conditions. Our result is not only measurement-device independent but also eff…
State Transfer and Entanglement between Two- and Four-Level Atoms in A Cavity
Si-Wu Li, Tianfeng Feng, Xiao-Long Hu +2
Qudits with a large Hilbert space to host quantum information are widely utilized in various applications, such as quantum simulation and quantum computation, but the manipulation…
Side-channel-free quantum key distribution with practical devices
Cong Jiang, Zong-Wen Yu, Xiao-Long Hu +1
Based on the idea that there is no side channel in the vacuum state, the side-channel-free quantum key distribution (SCFQKD) protocol was proposed, which is immune to all attacks i…
Universal approach to sending-or-not-sending twin field quantum key distribution
Xiao-Long Hu, Cong Jiang, Zong-Wen Yu +1
We present the method of decoy-state analysis after bit-flip error correction and using confidential observed numbers. Taking this tool we then construct a universal approach to se…
Sending-or-Not-Sending Twin-Field Quantum Key Distribution with Redundant Space
Hai Xu, Xiao-Long Hu, Cong Jiang +2
We propose to adopt redundant space such as polarization mode in the sending-or-not-sending Twin-Field quantum key distribution (TF-QKD) in the Fock space. With the help of redunda…
Robust twin-field quantum key distribution through sending-or-not-sending
Cong Jiang, Zong-Wen Yu, Xiao-Long Hu +1
The sending-or-not-sending (SNS) protocol is one of the most major variants of the twin-field (TF) quantum key distribution (QKD) protocol and has been realized in a 511 km field f…
Experimental Side-Channel-Free Quantum Key Distribution
Chi Zhang, Xiao-Long Hu, Jiu-Peng Chen +9
Quantum key distribution can provide unconditionally secure key exchange for remote users in theory. In practice, however, in most quantum key distribution systems, quantum hackers…
Composable security for practical quantum key distribution with two way classical communication
Cong Jiang, Xiao-Long Hu, Zong-wen Yu +1
We present methods to strictly calculate the finite-key effects in quantum key distribution (QKD) with error rejection through two-way classical communication (TWCC) for the sendin…
Twin-Field Quantum Key Distribution over 511 km Optical Fiber Linking two Distant Metropolitans
Jiu-Peng Chen, Chi Zhang, Yang Liu +16
The basic principle of quantum mechanics guarantee the unconditional security of quantum key distribution (QKD) at the cost of inability of amplification of quantum state. As a res…
Field Test of Twin-Field Quantum Key Distribution through Sending-or-Not-Sending over 428 km
Hui Liu, Cong Jiang, Hao-Tao Zhu +18
Quantum key distribution endows people with information-theoretical security in communications. Twin-field quantum key distribution (TF-QKD) has attracted considerable attention be…
Sending-or-not-sending twin-filed quantum key distribution with discrete phase modulation
Cong Jiang, Zong-Wen Yu, Xiao-Long Hu +1
We study the sending-or-not-sending (SNS) protocol with discrete phase modulation of coherent states. We first make the security of the SNS protocol with discrete phase modulation.…
Higher key rate of measurement-device-independent quantum key distribution through joint data processing
Cong Jiang, Zong-Wen Yu, Xiao-Long Hu +1
We propose a method named as double-scanning method, to improve the key rate of measurement-device-independent quantum key distribution (MDI-QKD) drastically. In the method, two pa…
Long-distance free-space measurement-device-independent quantum key distribution
Yuan Cao, Yu-Huai Li, Kui-Xing Yang +20
Measurement-device-independent quantum key distribution (MDI-QKD), based on two-photon interference, is immune to all attacks against the detection system and allows a QKD network…
Sending-or-Not-Sending with Independent Lasers: Secure Twin-Field Quantum Key Distribution Over 509 km
Jiu-Peng Chen, Chi Zhang, Yang Liu +15
Twin field quantum key distribution promises high key rates at long distance to beat the rate distance limit. Here, applying the sending or not sending TF QKD protocol, we experime…
General sending-or-not-sending twin field protocol for quantum key distribution with asymmetric source parameters
Xiao-Long Hu, Cong Jiang, Zong-Wen Yu +1
The sending-or-not-sending (SNS) protocol of the twin-field quantum key distribution (TFQKD) can tolerant large misalignment error and its key rate can exceed the bound of repeater…
Zigzag approach to higher key rate of sending-or-not-sending twin field quantum key distribution with finite key effects
Cong Jiang, Xiao-Long Hu, Hai Xu +2
Odd-parity error rejection (OPER) can drastically improve the asymptotic key rate of sending-or-not-sending twin-field (SNS-TF) quantum key distribution (QKD). However, in practice…
Unconditional security of sending or not sending twin-field quantum key distribution with finite pulses
Cong Jiang, Zong-Wen Yu, Xiao-Long Hu +1
The Sending-or-Not-Sending protocol of the twin-field quantum key distribution (TF-QKD) has its advantage of unconditional security proof under any coherent attack and fault tolera…
Improved results for sending-or-not-sending twin-field quantun key distribution: breaking the absolute limit of repeaterless key rate
Hai Xu, Zong-Wen Yu, Cong Jiang +2
We present improved method of sending-or-not-sending twin-field quantum key distribution (SNS TF-QKD) based on its structure and the application of error rejection. %And we present…
Experimental Twin-Field Quantum Key Distribution Through Sending-or-Not-Sending
Yang Liu, Zong-Wen Yu, Weijun Zhang +13
Channel loss seems to be the most severe limitation on the practical application of long distance quantum key distribution. The idea of twin-field quantum key distribution can impr…
Encoding-side-channel-free and measurement-device-independent quantum key distribution
Xiang-Bin Wang, Xiao-Long Hu, Zong-Wen Yu
We present a simple protocol where Alice and Bob only needs sending out a coherent state or not-sending out a coherent state to Charlie. There is no bases switching. We show that t…
Full Implementation of four-intensity Protocol for Measurement-Device-Independent Quantum Key Distribution over Asymmetric Channel
Xiao-Long Hu, Yuan Cao, Zong-Wen Yu +1
We study the the optimization of full implementation of the four-intensity decoy-state Measurement-Device-Independent Quantum Key Distribution (MDIQKD) over asymmetric and unstable…
Sending-or-not twin-field quantum key distribution in practice
Zong-Wen Yu, Xiao-Long Hu, Cong Jiang +2
We present results of practical sending-or-not quantum key distribution. In real-life implementations, we need consider the following three requirements, a few different intensitie…
Practical scheme for long distance side-channel-free quantum key distribution with weak coherent states only
Xiang-Bin Wang, Xiao-Long Hu, Zong-Wen Yu
We show that a side-channel-free (SCF) source does not have to be an ideal source by introducing the idea of mapping from ideal source. We propose a 3-state no-touch protocol for q…