Article
Optics
Gelo Noel M. Tabia, Varun Satya Raj Bavana, Shih-Xian Yang, Yeong-Cherng Liang
Summary: This article examines the problem of exhibiting Bell nonlocality for a two-qudit entangled pure state using a randomly chosen set of mutually unbiased bases (MUBs). The research finds that even with only two-setting Bell inequalities, there is a significant chance of obtaining a Bell violation if the two parties are individually allowed to measure a sufficient number of MUBs.
Article
Quantum Science & Technology
Shihao Wang, Bin Liu, Wei Huang, Bingjie Xu, Yang Li
Summary: At the current stage, quantum secret sharing (QSS) protocols are still facing challenges in practical application due to the expensive cost of quantum devices and the difficulties in quantum memory technology development. This paper proposes a newly designed (n,n)-threshold multiparty quantum secret sharing protocol with collective detection, which eliminates the need for quantum memory by having the sender immediately measure the agents' qubits upon receipt. This protocol shows more promise for practical application compared to previous QSS protocols with collective detection, considering the difficulties in quantum memory development. Communication security, measurement, quantum devices used, and communication efficiency are also analyzed in this study.
QUANTUM INFORMATION PROCESSING
(2023)
Article
Multidisciplinary Sciences
Armin Tavakoli, Mate Farkas, Denis Rosset, Jean-Daniel Bancal, Jedrzej Kaniewski
Summary: The text discusses the importance of mutually unbiased bases (MUBs) and symmetric informationally complete projectors (SICs) in quantum theory, particularly in the context of quantum nonlocality. It highlights the development of Bell inequalities, device-independent certification, and protocols for quantum key distribution and quantum random number generation using MUBs and SICs. Additionally, it presents the first example of an extremal point in the quantum set of correlations with physically inequivalent quantum realizations.
Article
Mathematics
Yun Mao, Yiwu Zhu, Yijun Wang, Ying Guo
Summary: This paper proposes a multi-participant secret key sharing scheme based on continuous variable quantum communication, which uses a local local oscillator to avoid potential attacks and improve the performance in terms of the maximal transmission distance.
Article
Quantum Science & Technology
Zehong Chang, Yunlong Wang, Zhenyu Guo, Min An, Rui Qu, Junliang Jia, Fumin Wang, Pei Zhang
Summary: The transverse spatial mode of light plays a crucial role in high-dimensional quantum key distribution (QKD). However, practical applications face challenges such as mode-dependent loss and system complexity, which hinder achieving higher dimensions, longer distances, and lower costs in communications. To address these issues, a mutually partially unbiased bases (MPUBs) protocol has been proposed, which fundamentally eliminates the effects of mode-dependent loss for long propagation distances and limited aperture sizes. In this study, we successfully implemented the MPUBs protocol in dimensions of 2, 4, 5, and 6. By employing a controlled unitary transformation, we were able to actively switch the measurement basis and create a compact measurement system. As a result, we achieved higher encoding dimensions using finite system resources, leading to higher key rates and stronger noise resistance. Our work enhances the practicality of the MPUBs protocol and contributes to the advancement of high-dimensional QKD in quantum networks.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Minjin Choi, Soojoon Lee
Summary: Quantum secret sharing is achieved through constructing specific quantum states in this work, allowing participants to securely share information. The article also demonstrates a method for N players to share an N-party genuine secret-sharing state, and explains the connection between the distillable rate and the relative entropy of entanglement.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Quantum Science & Technology
Chen-Ming Bai, Sujuan Zhang, Lu Liu
Summary: In this paper, we propose a physical process to mask a d-dimensional quantum state into multipartite quantum systems and introduce a quantum secret sharing scheme for a specific hypergraph access structure. In the proposed protocol, the distributor shares an unknown d-dimensional quantum state and masks the secret state into a multi-party quantum systems. Participants in the authorized set reconstruct the original information state through measurements and appropriate unitary operations. The security of our scheme is also analyzed under three primary quantum attacks.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Tao Guo, Xuan Guang, Kenneth W. Shum
Summary: This paper introduces an n-channel multilevel imperfect secret sharing problem, encoding a DMS into n messages and introducing security levels to measure secrecy. The paper focuses on the symmetric multilevel imperfect secret sharing (SMISS) problem and provides inner and outer bounds on the rate region for a general n. Additionally, special cases like Two-SMISS and linear SMISS problems are considered, with tight inner and outer bounds proven for these cases.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Quantum Science & Technology
Chia-Wei Tsai, Chun-Wei Yang, Jason Lin
Summary: This study proposes a multiparty mediated quantum secret sharing protocol that addresses common challenges in existing protocols and improves efficiency.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Optics
Yao Zhou, Zhen-Qiang Yin, Shuang Wang, Wei Chen, Guang-Can Guo, Zheng-Fu Han
Summary: In this paper, we propose a method to improve the key rate at long distances and the maximum achievable distance for twin-field quantum key distribution (TF-QKD) by deriving the error rates under three mutually unbiased bases in two-dimensional Hilbert space. By learning these error rates, noisy preprocessing can be added to further enhance the performance. We also find that higher bit error rates do not necessarily result in lower key rates when noisy preprocessing is employed. Our method only requires simple postprocessing of experimental data without changing the existing physical implementation or experimental operation, leading to notable enhancements in key rate and maximum achievable distance for the phase-encoded TF-QKD protocol, as demonstrated by simulation results.
Article
Quantum Science & Technology
Runsheng Peng, Ying Guo, Yijun Wang, Qin Liao
Summary: Quantum secret sharing is a method that allows multiple users to share a secret key, but the dealer's position poses potential security risks. To address this issue, we propose a decentralized quantum secret sharing scheme where any honest user can act as the dealer in a quantum communication network.
QUANTUM INFORMATION PROCESSING
(2023)
Article
Quantum Science & Technology
Yi-Hao Sheng, Jian Zhang, Yuan-Hong Tao, Shao-Ming Fei
Summary: The study focuses on the complementarity and uncertainty relations of coherence under mutually unbiased bases using skew information. It also derives the complementarity relation for geometric measure of coherence based on the coherence via skew information. As applications, two tighter upper bounds are presented for minimum error probabilities in discriminating a set of pure states with least square measurement, improving upon previous results.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Quantum Science & Technology
Chaoyang Li, Chongqiang Ye, Yuan Tian, Xiu-Bo Chen, Jian Li
Summary: Two quantum secret sharing (QSS) protocols utilizing four-qubit cluster state and Bell state entanglement are proposed in this paper, catering to quantum and classical users respectively. The proposed protocols demonstrate full security and resistance to common eavesdropping attacks, while also showing efficiency advantages over similar protocols in terms of qubit efficiency.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Multidisciplinary Sciences
Michael Ampatzis, Theodore Andronikos
Summary: The Symmetric Extensible Quantum Secret Sharing protocol is a novel protocol that securely shares secret messages using entanglement. It is characterized by symmetry and can be extended to any number of players. After the completion of the quantum part, the spymaster has the privilege of deciding when the agents can unlock the secret message.
Article
Quantum Science & Technology
Maria Prat Colomer, Luke Mortimer, Irenee Frerot, Mate Farkas, Antonio Acin
Summary: This study numerically investigates Zauner's conjecture and finds that there are no four mutually unbiased bases in dimension six, while there are at most three MUBs in dimension ten.
Article
Astronomy & Astrophysics
Kilar Zhang, Takayuki Hirayama, Ling-Wei Luo, Feng-Li Lin
Article
Physics, Multidisciplinary
Baoyi Chen, Feng-Li Lin, Bo Ning, Yanbei Chen
Summary: The study investigates the weak cosmic censorship conjecture for extremal charged black holes in possible generalizations of Einstein-Maxwell theory with high-order corrections up to fourth-derivative terms. It is found that the WCCC does not hold for all possible generalizations, serving as a new constraint to high-order effective field theories. The precision measurement of quantum electrodynamics is unable to constrain the WCCC due to the independence of photon's self-interactions.
PHYSICAL REVIEW LETTERS
(2021)
Article
Astronomy & Astrophysics
Kilar Zhang, Feng-Li Lin
Correction
Physics, Multidisciplinary
Baoyi Chen, Feng-Li Lin, Bo Ning, Yanbei Chen
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Dimitrios Giataganas, Ching-Yu Huang, Feng-Li Lin
Summary: In this study, a variety of neural network flows were constructed using restricted Boltzmann machines and (variational) autoencoders to study the q-state Potts and clock models on the square lattice. By training the neural networks on spin configurations at different temperatures, it was found that the trained neural network flows converge to the critical point, exhibiting generative behavior, and the convergence is independent of network types and spin model types.
NEW JOURNAL OF PHYSICS
(2022)
Article
Plant Sciences
Qiufang Zhang, Jiguang Feng, Jian Li, Ching-Yu Huang, Yawen Shen, Weixin Cheng, Biao Zhu
Summary: This study combines two experiments and a meta-analysis to investigate the priming effect (PE) of soil organic carbon (SOC) and its relationship with SOC stability. The results show that the PE increases with the prolongation of soil preincubation, indicating that stable SOC is more vulnerable to PE compared to labile SOC. The meta-analysis supports this finding and reveals that soil C availability plays a crucial role in regulating the difference in PE between labile and stable SOC. These findings highlight the importance of considering the vulnerability of stable SOC to priming in future studies on SOC cycling and global change.
Article
Astronomy & Astrophysics
Che-Yu Chen, Feng-Li Lin, Avani Patel
Summary: This study investigates the chaotic dynamics of nonspinning test particles in the inspiral process of spinning binary black holes. The research reveals that the chaotic behavior is particularly evident in the regime where the Kerr bounds of the component black holes hold.
Article
Religion
Ching-Yu Huang
Article
Astronomy & Astrophysics
Han-Shiang Kuo, Feng-Li Lin
Summary: We propose a Bayesian inference deep learning machine for parameter estimation of gravitational wave events. The machine is capable of accelerating the estimation process and generating posterior probabilities compatible with traditional methods.
Article
Materials Science, Multidisciplinary
Yu-Hsueh Chen, Ching-Yu Huang, Ying-Jer Kao
Summary: The research proposes a unified scheme to identify phase transitions out of the Z(2) Abelian topological order, including the transition to a non-Abelian chiral spin liquid. By computing the overlap of minimally entangled states, the study demonstrates the transition between Abelian and non-Abelian topological orders, as well as the transformation of anyons in the process. Furthermore, the research shows that both LG and SG states have infinite correlation length in the non-Abelian regime, consistent with the no-go theorem regarding the gaplessness of a chiral PEPS.
Article
Astronomy & Astrophysics
Chung-Hao Liao, Feng-Li Lin
Summary: By constructing deep generative models, researchers can accurately and quickly generate binary black hole merger waveforms, which may help improve efficiency in searching for and estimating parameters of gravitational wave events.
Article
Materials Science, Multidisciplinary
Ching-Yu Huang, Yuan-Chun Lu, Pochung Chen
Article
Astronomy & Astrophysics
Feng-Li Lin, Shingo Takeuchi
Article
Astronomy & Astrophysics
Bo Ning, Baoyi Chen, Feng-Li Lin
Article
Optics
Ching-Yu Huang, Yen-Ting Lin, Hao Lee, Daw-Wei Wang
