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Maximally steerable mixed state based on the linear steering inequality and the Clauser-Horne-Shimony-Holt–like steering inequality

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Physical Review A 2018年第3期97卷 032119-032119页

作者： Changliang Ren Hong-Yi Su Haofei Shi Jingling Chen Center for Nanofabrication and System Integration Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences 400714 People's Republic of China Chongqing Key Laboratory of Multi-Scale Manufacturing Technology Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences 400714 People's Republic of China CAS Key Laboratory of Quantum Information University of Science and Technology of China Hefei 230026 People's Republic of China Theoretical Physics Division Chern Institute of Mathematics Nankai University Tianjin 300071 People's Republic of China Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 Singapore 117543

The two-qubit maximally steerable mixed state (MSMS), defined as one that violates to the most degree a steering inequality for any fixed linear entropy, is derived mathematically here based on the two-setting (three-setting) linear steering inequality and the two-setting Clauser-Horne-Shimony-Holt–like steering inequality. Interestingly, the form of the MSMS based on such different steering inequalities obtained here is identical to the two-qubit maximally nonlocal mixed state (MNMS). It is clearly shown that finding any two-qubit state, of which the state mixedness exceeds 2/3, thus violating the three-setting steering inequalities, is impossible. The violation of the inequalities with the Werner state and with the maximally entangled mixed state, respectively, as well as the relations between their optimal violation and the linear entropy, is also discussed comprehensively. In particular, within the range ɛ(ρ)∈[0,2/3] of the fixed linear entropy, the Werner state reaches the same violation as the MSMS does of the three-setting linear steering inequality, but not of the two-setting steering inequalities (for the latter inequalities the violation with the Werner state is generally less than that with the MSMS). For the MEMS, the optimal violation is always lower than that of the MSMS for any fixed linear entropy.

关键词： Nonlocality Quantum entanglement Resource theories

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Design and Analysis of All-electric Aircraft Nose Wheel Steering system Based on Intelligent Algorithm

Design and Analysis of All-electric Aircraft Nose Wheel Stee...

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2017 2nd International Conference on Applied Mechanics and Mechatronics Engineering(AMME 2017)

作者： Ming ZHANG Meng-jiao LENG Xin WU Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle Nanjing University of Aeronautics & Astronautics Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration

As all-electric aircraft has many advantages, aircraft nose wheel steering system would be developed to the all-electric direction. Aiming at the control demand of nose wheel steering system, based on the basic principles of nose wheel steering system and the design technique of mechanotronics, an all-electric aircraft nose wheel steering system composed of a nose wheel steering mechanism of two worm gear and a control servo system of fly-by-wire having both steering and anti-shimmy function is designed to meet the demand for operation control in nose wheel steering system. Besides, the fuzzy algorithm and BP neural network algorithm is applied to the control system to explore its algorithm. Then based on Matlab/Simulink and LMS/AMESim software, the united simulation model of the system with fuzzy PID controller is established to make the dynamic simulation analysis for the verification of its steering function, the research results indicate that the nose wheel steering system is reasonable and validated, can meet the requirements of the general project.

关键词： Mechanotronics design United simulation analysis Nose wheel steering system Landing gear

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Mapping criteria between nonlocality and steerability in qudit-qubit systems and between steerability and entanglement in qubit-qudit systems

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Physical Review A 2018年第5期98卷 052114-052114页

作者： Changbo Chen Changliang Ren Xiang-Jun Ye Jing-Ling Chen Chongqing Key Laboratory of Automated Reasoning and Cognition Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 People's Republic of China Center for Nanofabrication and System Integration Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 People's Republic of China CAS Key Laboratory of Quantum Information University of Science and Technology of China Hefei 230026 People's Republic of China Theoretical Physics Division Chern Institute of Mathematics Nankai University Tianjin 300071 People's Republic of China Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 Singapore 117543

Entanglement, quantum steering, and nonlocality are distinct quantum correlations which are the resources behind various quantum information and quantum computation applications. However, a central question of determining the precise quantitative relation among them is still unresolved. Here we present a mapping criterion between Bell nonlocality and quantum steering in the bipartite qudit-qubit system, as well as a mapping criterion between quantum steering and quantum entanglement in the bipartite qubit-qudit system, starting from the fundamental concepts of quantum correlations. Precise quantitative mapping criteria are derived analytically. Such mapping criteria are independent of the form of the state. In particular, they cover several previous well-known research results which are only special cases in our simple mapping criteria.

关键词： Entanglement measures Nonlocality Quantum correlations in quantum information Quantum entanglement Resource theories

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Small UAV Autonomous Localization Based on Multiple Sensors Fusion

Small UAV Autonomous Localization Based on Multiple Sensors ...

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2017 IEEE 第2届先进信息技术,电子与自动化控制国际会议(IAEAC 2017)

作者： Bingfei Li Huawei Liu Jianye Zhang Xiaolin Zhao Boxin Zhao Key Laboratory of Science and Technology on Avionics Integration Technologies Aeronautics and Astronautics Engineering College Air Force Engineering University College of Mechatronics Engineering Automation National University of Defense Technology

Autonomous localization is a challenge for small UAVs in the environment where GPS signal is unavailable. In this paper, we propose a novel autonomous localization algorithm for small UAVs without map

ISBN: (纸本)9781467389808

关键词： Visual odometer Autonomous localization Map construction flight conditions Unmanned Aerial Vehicle flight state Sensor fusion odometry Not Available drone honey bees terraces

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Genetic drivers of heterogeneity in type 2 diabetes pathophysiology

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Nature 2024年第8003期627卷 347-357页

作者： Ken Suzuki Konstantinos Hatzikotoulas Lorraine Southam Henry J Taylor Xianyong Yin Kim M Lorenz Ravi Mandla Alicia Huerta-Chagoya Giorgio E M Melloni Stavroula Kanoni Nigel W Rayner Ozvan Bocher Ana Luiza Arruda Kyuto Sonehara Shinichi Namba Simon S K Lee Michael H Preuss Lauren E Petty Philip Schroeder Brett Vanderwerff Mart Kals Fiona Bragg Kuang Lin Xiuqing Guo Weihua Zhang Jie Yao Young Jin Kim Mariaelisa Graff Fumihiko Takeuchi Jana Nano Amel Lamri Masahiro Nakatochi Sanghoon Moon Robert A Scott James P Cook Jung-Jin Lee Ian Pan Daniel Taliun Esteban J Parra Jin-Fang Chai Lawrence F Bielak Yasuharu Tabara Yang Hai Gudmar Thorleifsson Niels Grarup Tamar Sofer Matthias Wuttke Chloé Sarnowski Christian Gieger Darryl Nousome Stella Trompet Soo-Heon Kwak Jirong Long Meng Sun Lin Tong Wei-Min Chen Suraj S Nongmaithem Raymond Noordam Victor J Y Lim Claudia H T Tam Yoonjung Yoonie Joo Chien-Hsiun Chen Laura M Raffield Bram Peter Prins Aude Nicolas Lisa R Yanek Guanjie Chen Jennifer A Brody Edmond Kabagambe Ping An Anny H Xiang Hyeok Sun Choi Brian E Cade Jingyi Tan K Alaine Broadaway Alice Williamson Zoha Kamali Jinrui Cui Manonanthini Thangam Linda S Adair Adebowale Adeyemo Carlos A Aguilar-Salinas Tarunveer S Ahluwalia Sonia S Anand Alain Bertoni Jette Bork-Jensen Ivan Brandslund Thomas A Buchanan Charles F Burant Adam S Butterworth Mickaël Canouil Juliana C N Chan Li-Ching Chang Miao-Li Chee Ji Chen Shyh-Huei Chen Yuan-Tsong Chen Zhengming Chen Lee-Ming Chuang Mary Cushman John Danesh Swapan K Das H Janaka de Silva George Dedoussis Latchezar Dimitrov Ayo P Doumatey Shufa Du Qing Duan Kai-Uwe Eckardt Leslie S Emery Daniel S Evans Michele K Evans Krista Fischer James S Floyd Ian Ford Oscar H Franco Timothy M Frayling Barry I Freedman Pauline Genter Hertzel C Gerstein Vilmantas Giedraitis Clicerio González-Villalpando Maria Elena González-Villalpando Penny Gordon-Larsen Myron Gross Lindsay A Guare Sophie Hackinger Liisa Hakaste Sohee Han Andrew T Hattersley Christian Herder Momoko Horikoshi Annie-Green Howard Willa Centre for Genetics and Genomics Versus Arthritis Centre for Musculoskeletal Research Division of Musculoskeletal and Dermatological Sciences University of Manchester Manchester UK. Department of Diabetes and Metabolic Diseases Graduate School of Medicine University of Tokyo Tokyo Japan. Department of Statistical Genetics Osaka University Graduate School of Medicine Suita Japan. Institute of Translational Genomics Helmholtz Zentrum München German Research Center for Environmental Health Neuherberg Germany. konstantinos.hatzikotoulas@helmholtz-munich.de. Institute of Translational Genomics Helmholtz Zentrum München German Research Center for Environmental Health Neuherberg Germany. Center for Precision Health Research National Human Genome Research Institute National Institutes of Health Bethesda MD USA. British Heart Foundation Cardiovascular Epidemiology Unit Department of Public Health and Primary Care University of Cambridge Cambridge UK. Heart and Lung Research Institute University of Cambridge Cambridge UK. Department of Epidemiology School of Public Health Nanjing Medical University Nanjing China. Department of Biostatistics and Center for Statistical Genetics University of Michigan Ann Arbor MI USA. Corporal Michael J. Crescenz VA Medical Center Philadelphia PA USA. Department of Systems Pharmacology and Translational Therapeutics University of Pennsylvania Perelman School of Medicine Philadelphia PA USA. Department of Genetics University of Pennsylvania Perelman School of Medicine Philadelphia PA USA. Programs in Metabolism and Medical and Population Genetics Broad Institute of Harvard and MIT Cambridge MA USA. Diabetes Unit and Center for Genomic Medicine Massachusetts General Hospital Boston MA USA. TIMI Study Group Division of Cardiovascular Medicine Brigham and Women's Hospital Harvard Medical School Boston MA USA. William Harvey Research Institute Barts and the London School of Medicine and Dentistry Queen Mary University of London L

Type 2 diabetes (T2D) is a heterogeneous disease that develops through diverse pathophysiological processes and molecular mechanisms that are often specific to cell type. Here, to characterize the genetic contribution to these processes across ancestry groups, we aggregate genome-wide association study data from 2,535,601 individuals (39.7% not of European ancestry), including 428,452 cases of T2D. We identify 1,289 independent association signals at genome-wide significance (P < 5 × 10) that map to 611 loci, of which 145 loci are, to our knowledge, previously unreported. We define eight non-overlapping clusters of T2D signals that are characterized by distinct profiles of cardiometabolic trait associations. These clusters are differentially enriched for cell-type-specific regions of open chromatin, including pancreatic islets, adipocytes, endothelial cells and enteroendocrine cells. We build cluster-specific partitioned polygenic scores in a further 279,552 individuals of diverse ancestry, including 30,288 cases of T2D, and test their association with T2D-related vascular outcomes. Cluster-specific partitioned polygenic scores are associated with coronary artery disease, peripheral artery disease and end-stage diabetic nephropathy across ancestry groups, highlighting the importance of obesity-related processes in the development of vascular outcomes. Our findings show the value of integrating multi-ancestry genome-wide association study data with single-cell epigenomics to disentangle the aetiological heterogeneity that drives the development and progression of T2D. This might offer a route to optimize global access to genetically informed diabetes care.

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Mapping criteria of nonlocality-steerability in qudit-qubit systems and steerability-entanglement in qubit-qudit systems

arXiv

引用

arXiv 2018年

作者： Chen, Changbo Ren, Changliang Ye, Xiang-Jun Chen, Jing-Ling Chongqing Key Laboratory of Automated Reasoning and Cognition Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China Center for Nanofabrication and System Integration Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China CAS Key Laboratory of Quantum Information University of Science and Technology of China Hefei230026 China Theoretical Physics Division Chern Institute of Mathematics Nankai University Tianjin300071 China Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 117543 Singapore

Entanglement, quantum steering and nonlocality are distinct quantum correlations which are the resources behind various of quantum information and quantum computation applications. However, a central question of determining the precise quantitative relation among them is still unresolved. Here, we present a mapping criterion between Bell nonlocality and quantum steering in bipartite qudit-qubit system, as well as a mapping criterion between quantum steering and quantum entanglement in bipartite qubit-qudit system, starting from the fundamental concepts of quantum correlations. Precise quantitative mapping criteria are derived analytically. Such mapping criteria are independent of the form of the state. In particular, they cover several previous well-known research results which are only special cases in our simple mapping criteria. Copyright © 2018, The Authors. All rights reserved.

关键词： Quantum entanglement

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Novel polarimetric detector for target detection in heterogeneous clutter

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Journal of systems Engineering and Electronics 2016年第6期27卷 1135-1141页

作者： Xu Cheng Longfei Shi Yuliang Chang Yongzhen Li Xuesong Wang State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System College of Electronic Science and Engineering National University of Defense Technology

A detection of static or slowly moving targets in the inhomogeneous clutter of polarimetric radar is researched and a new detector without exploiting the training set is developed, which has a good performance against the inhomogeneous clutter. The decision rule ensures the constant false alarm rate (CFAR) with respect to the disturbance covariance matrix. Numerical results show the robustness of the proposed method against the inhomogeneous clutter. © 2016 Beijing Institute of Aerospace Information.

关键词： Clutter (information theory) Covariance matrix Numerical methods Polarimeters Radar Radar clutter Radar signal processing Signal processing

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Chained Einstein-Podolsky-Rosen steering inequalities with improved visibility

arXiv

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arXiv 2018年

作者： Meng, Hui-Xian Zhou, Jie Ren, Changliang Su, Hong-Yi Chen, Jing-Ling Theoretical Physics Division Chern Institute of Mathematics Nankai University Tianjin300071 China Center for Nanofabrication and System Integration Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences China Chongqing Key Laboratory of Multi-Scale Manufacturing Technology Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences China Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 Singapore117543 Singapore

It is known that the linear n-setting steering inequalities introduced in Ref. [Nature Phys. 6, 845 (2010)] are very efficient inequalities in detecting steerability of the Werner states by using optimal measurement axes. Here, we construct chained steering inequalities that have improved visibility for the Werner states under a finite number of settings. Specifically, the threshold values of quantum violation of our inequalities for the n = 4, 6, 10 settings are lower than those of the linear steering inequalities. Furthermore, for almost all generalized Werner states, the chained steering inequalities always have improved visibility in comparison with the linear steering inequalities. Copyright © 2018, The Authors. All rights reserved.

关键词： Visibility

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Improving hazard analysis of integrated modular avionics system based on system-theoretic process analysis 17th

Improving hazard analysis of integrated modular avionics sys...

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17th AIAA Aviation technology, integration, and Operations Conference, 2017

作者： Rong, Hao Gu, Qingfan Chen, Zhixiong Xu, Desheng China National Aeronautical Radio Electronics Research Institute Shanghai China Science and Technology on Avionics Integration Laboratory Shanghai China State Key Laboratory for Civil Aircraft Flight Simulation Commercial Aircraft Corporation of China Ltd No.5188 Jin Ke Road Shanghai China Civil Aviation Department No.432 Zi Yue Road Shanghai China

ISBN: (纸本)9781624105081

Integrated modular avionics systems bring new concepts and benefits for function integration and resource utilization in developing advanced aircraft avionics, as well as a series of challenges related to hazard analysis in components interaction and functions operation. When software applications provided independently by the subsystem developers are integrated onto the IMA hardware platform, it is very difficult for designers to understand and predict how the system will behave and what interaction hazards could occur. Although the ARP 4761-based safety analysis methods have solved a large number of safety problems on the development of civil aircraft and system designs in early times, there are some limitations when analyzing more and more complex integrated modular avionics systems in modern times. To gain a good or better understanding and a comprehensive awareness of applications interaction hazards in today’s more complex, software-intensive IMA systems, it is significant to use a method to consider these new causal factors that are not handled by the older techniques and to provide more guidance to the analyst in performing hazard analysis. system-Theoretic Process Analysis (STPA) is one of typical systemic hazard analysis methods. STPA has its foundation in a new accident causality model called STAMP (system-Theoretic Accident Model and Process). STAMP was proposed based on the cybernetics of systems theory. In STAMP, the dysfunctional interactions and requirements flaws during operation are primary types of inadequate control. The STPA-based hazard analysis method is extended in this paper to account for behavior that emerges when software applications are integrated and make functional interaction. This method will be capable of modeling the new causal factors that contribute to component interaction hazards. The paper illustrates the new method with a case that includes real-world avionics display functions, this application of the proposed method will b

关键词： Hazards

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Interaction Dynamics Characteristics of Detonation Waves with Coolant Flow in a Hydrogen Fuelled Detonation Chamber

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Transactions of Nanjing University of Aeronautics and Astronautics 2016年第6期33卷 -页

作者： Li Jianzhong Yuan Li Wang Jiahua Jiangsu Province Key Laboratory of Aerospace Power System Nanjing University of Aeronautics and Astronautics School of National Defense Engineering PLA University of Science and Technology

To analyze the dynamic interaction between detonation waves and coolant flow in a hydrogen fuelled detonation chamber,a hydrogen fuelled detonation chamber with a cooled liner was designed and a simulation model was *** explicit high-resolution total variation diminishing(TVD)scheme was developed to solve the two-dimensional Euler equations implemented with an augmented reduced mechanism of the hydrogen/air mixture.A point-implicit method was used to solve the numerical stiffness of the chemical reaction source *** interaction between detonative was and coolant flow were *** interaction dynamics between detonation waves and coolant flow in a detonation chamber were *** results indicated that there were some negative interaction effects between detonation waves and coolant flow.

关键词： pulse detonation engine detonation wave augmented reduced mechanism numerical simulation

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