Article
Optics
Jin Qi, Jinye Peng, Weiqi Liu, Chen He, Minghui Zhang
Summary: The study proposes a method to enhance the performance of self-referenced continuous-variable quantum key distribution protocols by adding an optical parametric amplifier, and calculates the secret key rate against collective eavesdropping attacks. Experimental results demonstrate that an ideal phase-sensitive amplifier can improve the efficiency of a homodyne detector.
LASER PHYSICS LETTERS
(2021)
Article
Quantum Science & Technology
Junkai Hu, Qin Liao, Yun Mao, Ying Guo
Summary: Compared with symmetric Gaussian-modulated coherent state protocol, the UCVQKD simplifies implementation by modulating only one quadrature in the phase space, but its performance is reduced. This work introduces an improved approach for UCVQKD using zero-photon quantum catalysis (ZPQC) technology, which enhances both secret key rate and maximal transmission distance, outperforming photon subtraction-based UCVQKD.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Physics, Multidisciplinary
Qin Liao, Gang Xiao, Shaoliang Peng
Summary: This study investigates a practical scenario where the signal source is no longer protected and is placed in an untrusted atmospheric channel, leading to a reduction in the performance of ACVQKD. However, it is found that the performance can be improved by adopting a photon subtraction operation.
Article
Multidisciplinary Sciences
Nitin Jain, Hou-Man Chin, Hossein Mani, Cosmo Lupo, Dino Solar Nikolic, Arne Kordts, Stefano Pirandola, Thomas Brochmann Pedersen, Matthias Kolb, Bernhard Omer, Christoph Pacher, Tobias Gehring, Ulrik L. Andersen
Summary: This paper introduces a continuous-variable quantum key distribution (CVQKD) protocol that can generate composable keys secure against collective attacks. By using Gaussian-modulated coherent states and improving the security proof and system operation, this CVQKD protocol overcomes the difficulty of key generation in existing protocols. This advance brings CVQKD implementations closer to their discrete-variable counterparts in terms of practicality, performance, and security.
NATURE COMMUNICATIONS
(2022)
Article
Quantum Science & Technology
Nitin Jain, Ivan Derkach, Hou-Man Chin, Radim Filip, Ulrik L. Andersen, Vladyslav C. Usenko, Tobias Gehring
Summary: This study identified a modulation leakage vulnerability in continuous-variable quantum key distribution systems, caused by inadequate suppression of certain sidebands during modulation. The leakage was found to impact the range of secret key obtainment and could potentially lead to security breaches, with additional trusted noise proving effective in countering this vulnerability.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Quantum Science & Technology
Adnan A. E. Hajomer, Nitin Jain, Hossein Mani, Hou-Man Chin, Ulrik L. Andersen, Tobias Gehring
Summary: This study proposes a CVQKD system without modulation leakage vulnerability, achieving state preparation and measurement using baseband modulation and an IQ modulator. The system can generate a composable secret key secure against collective attacks.
NPJ QUANTUM INFORMATION
(2022)
Article
Physics, Multidisciplinary
Xiao-Ting Chen, Lu-Ping Zhang, Shou-Kang Chang, Huan Zhang, Li-Yun Hu
Summary: In continuous variable quantum key distribution, performing photon addition operation on the left side of the entangled source shows higher success probability, better secure key rate, and transmission distance compared to photon subtraction on the right side, even with the same maximum tolerable noise.
Article
Physics, Multidisciplinary
Mikolaj Lasota, Olena Kovalenko, Vladyslav C. Usenko
Summary: Discrete-variable (DV) and continuous-variable (CV) schemes are the two major families of quantum key distribution (QKD) protocols. This work compares the major entanglement-based DV and CV QKD protocols in terms of their resistance to channel noise, and finds the definite superiority of the DV family. The influence of DV QKD setup imperfections on the obtained results is also investigated.
NEW JOURNAL OF PHYSICS
(2023)
Article
Optics
Olena Kovalenko, Young-Sik Ra, Yin Cai, Vladyslav C. Usenko, Claude Fabre, Nicolas Treps, Radim Filip
Summary: Quantum key distribution using continuous variables offers high-speed, low-noise homodyne detection and can achieve secure key transmission over long distances. Increasing system clock rates and frequency-mode-multiplexing can further enhance the secret key rate.
PHOTONICS RESEARCH
(2021)
Article
Optics
Yao Yan, Duan Huang, Pengzhi Yin, Haisen Luo, Jianfeng Chen, Yiyu Mao, Ronghua Shi
Summary: This paper proposes a defense scheme with artificial key fingerprints for continuous-variable quantum key distribution (CVQKD) systems, which effectively monitors sample changes in real time and stays robust against adversarial examples attack. The proposal provides a different idea to address the potential vulnerability between machine-learning models used in CVQKD systems and their possible attacked training and test data by adversarial examples.
Article
Quantum Science & Technology
Zhennan Wen, Yougen Yi, Xiaowen Xu, Ying Guo
Summary: In this paper, a non-Gaussian approach using photon catalysis is proposed to improve the performance of continuous-variable quantum teleportation (CVQT). Numerical simulations show that this approach enhances the fidelity and maximal transmission distance of CVQT.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Yi-Hua Zhou, Shu-Fen Qin, Wei-Min Shi, Yu-Guang Yang
Summary: In this paper, a measurement-device-independent continuous variable semi-quantum key distribution protocol is proposed to address the high cost of quantum equipment and the difficulty of preparing discrete variable quantum states. By analyzing the prepared-measure model and the entanglement-based model, as well as performing numerical simulations, the secret key rate and other performance of the protocol are analyzed, demonstrating its advantages in achieving secure communication and maximum secret key rate.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Hou-Man Chin, Nitin Jain, Ulrik L. Andersen, Darko Zibar, Tobias Gehring
Summary: Continuous variable quantum key distribution (CV-QKD) is a promising emerging technology for secure key distribution. We propose a digital synchronization procedure that is independent of modulation format and does not require hardware modifications. Experimental results show its performance in CV-QKD systems.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Quantum Science & Technology
Binjie Chu, Yichen Zhang, Yundi Huang, Song Yu, Ziyang Chen, Hong Guo
Summary: Source monitoring is crucial for continuous-variable quantum key distribution, especially in the presence of laser intensity fluctuations that can lead to overestimation of the secret key rate. A practical monitoring scheme can effectively model and monitor the impact of the relative intensity noise in real time, thus ensuring accurate key estimation and system security.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Yiwu Zhu, Lei Mao, Hui Hu, Yijun Wang
Summary: This study investigates the effects of oceanic turbulence on the performance of continuous variable quantum key distribution (CVQKD) systems and proposes the feasibility of passive CVQKD through oceanic turbulence-based channels. The channel transmittance, characterized by the transmission distance and depth of seawater, is achieved. Non-Gaussian approaches are used to improve performance by countering excess noise effects on the oceanic channel. Numerical simulations demonstrate that the photon operation (PO) unit reduces excess noise and improves performance in terms of transmission distance and depth when considering oceanic turbulence. The passive CVQKD, which exploits the intrinsic field fluctuations of a thermal source without an active scheme, has promising applications in chip integration for portable quantum communications.
Article
Physics, Multidisciplinary
Xiaodong Wu, Yijun Wang, Qin Liao, Hai Zhong, Ying Guo
Article
Physics, Multidisciplinary
Yanyan Feng, Ronghua Shi, Jian Zhou, Qin Liao, Ying Guo
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2019)
Letter
Gastroenterology & Hepatology
Li Zhuang, Hai-Bo Mou, Lan-Fang Yu, Heng-Kai Zhu, Zhe Yang, Qin Liao, Shu-Sen Zheng
HEPATOBILIARY & PANCREATIC DISEASES INTERNATIONAL
(2020)
Article
Physics, Multidisciplinary
Qingquan Peng, Qin Liao, Ying Guo
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2020)
Article
Oncology
Xing-Chen Huo, Hui-Wen Yang, Li-Hua Huang, Fan Zhang, Zi-Ye Pan, Qin Liao
MOLECULAR MEDICINE REPORTS
(2020)
Article
Oncology
Ming Wang, Qin Liao, Pengfei Zou
CANCER BIOLOGY & THERAPY
(2020)
Article
Physics, Multidisciplinary
Kunlin Zhou, Zhiya Chen, Ying Guo, Qin Liao
Article
Urology & Nephrology
Dong Wang, Shi-Kun Yang, Meng-Xi Zhao, Yong-Zhong Tang, Wen Ou-Yang, Hao Zhang, Qin Liao
Article
Anesthesiology
Zi-Ye Pan, Zhong-Hua Hu, Fan Zhang, Wen-Xiu Xie, Yong-Zhong Tang, Qin Liao
BMC ANESTHESIOLOGY
(2020)
Article
Physics, Multidisciplinary
Qin Liao, Gang Xiao, Hai Zhong, Ying Guo
NEW JOURNAL OF PHYSICS
(2020)
Article
Anesthesiology
Yu-jiao Guan, Lai Wei, Qin Liao, Qi-wu Fang, Nong He, Chong-fang Han, Chang-hong Miao, Gang-jian Luo, Han-bing Wang, Hao Cheng, Qu-lian Guo, Zhi-gang Cheng
BMC ANESTHESIOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Fan Zhang, Jianbin Tong, Wenxiang Qing, Zhonghua Hu, Jie Hu, Qin Liao
Summary: This study showed that certain MDR1 gene polymorphisms and haplotypes significantly affected postoperative fentanyl consumption, while others did not. This indicates that multidrug resistance gene-1 can contribute to individual variability in sensitivity to fentanyl.
JOURNAL OF NANOMATERIALS
(2021)
Article
Chemistry, Medicinal
Fan Zhang, Huan Chang, Wenxiang Qing, Rili Yu, Qin Liao, Jianbin Tong
Summary: This study aimed to investigate whether the combination of remimazolam and low-dose propofol could improve the sedation effect and safety of hysteroscopy. The results showed that the combination group had lower incidence of low oxygen saturation, injection pain, hypotension, and postoperative dizziness compared to the propofol group, and had similar results as the remimazolam group. The combination group also had lower incidence of body movements and shorter postoperative recovery time.
DRUG DESIGN DEVELOPMENT AND THERAPY
(2022)
Article
Surgery
Yanjun Zhou, Xinyi Huang, Huan Chang, Hongyu Sun, Wenxiu Xie, Ziye Pan, Fan Zhang, Qin Liao
Summary: The study aimed to determine the optimal bolus dose of oxycodone for patient controlled intravenous analgesia (PCIA) without background dose in elderly patients after laparoscopic surgery for gastrointestinal cancer. The results showed that the VAS scores of pain on mobilization and the total and effective numbers of press in PCIA were lower in the 0.02 mg/kg and 0.03 mg/kg groups compared to the 0.01 mg/kg group. Therefore, a bolus dose of 0.02 mg/kg of oxycodone in PCIA without background infusion may be a better choice for elderly patients undergoing laparoscopic surgery for gastrointestinal cancer.
FRONTIERS IN SURGERY
(2023)
Article
Optics
Ying Guo, Wei Ye, Hai Zhong, Qin Liao
