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Random Fuzzy Chance-constrained Programming Based on Adaptive Chaos quantum Honey Bee Algorithm and Robustness Analysis

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International Journal of Automation and computing 2010年第1期7卷 115-122页

作者： Han Xue Xun Li Hong-Xu Ma College of Electromechanical Engineering and Automation, National University of Defense Technology, Changsha 410073, PRC College of Electromechanical Engineering and Automation National University of Defense Technology Changsha PRC

This paper proposes an adaptive chaos quantum honey bee algorithm （CQHBA） for solving chance-constrained program- ming in random fuzzy environment based on random fuzzy simulations. Random fuzzy simulation is designed to estimate the chance of a random fuzzy event and the optimistic value to a random fuzzy variable. In CQHBA, each bee carries a group of quantum bits representing a solution. Chaos optimization searches space around the selected best-so-far food source. In the marriage process, random interferential discrete quantum crossover is done between selected drones and the queen. Gaussian quantum mutation is used to keep the diversity of whole population. New methods of computing quantum rotation angles are designed based on grads. A proof of con- vergence for CQHBA is developed and a theoretical analysis of the computational overhead for the algorithm is presented. Numerical examples are presented to demonstrate its superiority in robustness and stability, efficiency of computational complexity, success rate, and accuracy of solution quality. CQHBA is manifested to be highly robust under various conditions and capable of handling most random fuzzy programmings with any parameter settings, variable initializations, system tolerance and confidence level, perturbations, and noises.

关键词： Honey bee algorithm random fuzzy programming quantum computation chaos optimization robustness

A New Approach to Measurement of Heating Rate of Trapped Ions

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Communications in Theoretical Physics 2010年第9期54卷 460-462页

作者：徐酉阳周飞谢艺 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsChinese Academy of Sciences Graduate School of the Chinese Academy of Sciences

We propose a new scheme to estimate the heating rate of trapped ions in thermal states. By applying a controlled-U gate between the internal and the motional states of one of the trapped ions, we could obtain the mean phonon number from the population of the internal state of the ion. The imperfection due to fluctuations of the relevant parameters in real experiments is considered and we anaiyze the experimental feasibility of our scheme with sophisticated ion trap techniques.

关键词： heating of trapped ions quantum computation

Finite automata based on quantum logic and monadic second-order quantum logic

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Science China(Information Sciences) 2010年第1期53卷 101-114页

作者： LI YongMing College of Computer Science, Shaanxi Normal University, Xi’an 710062, China College of Computer Science Shaanxi Normal University Xi’an China

We introduce monadic second-order quantum logic and prove that the behaviors of finite automata based on quantum logic are precisely the quantum languages definable with sentences of our monadic secondorder quantum logic. This generalizes Büchi’s and Elgot’s fundamental theorems to quantum logic setting. We also consider first-order quantum logic and show that star-free quantum languages and aperiodic quantum languages introduced here coincide with the first-order quantum definable ones. This generalizes Schützenberger’s fundamental theorems to quantum logic setting. The determinazation of finite automata based on quantum logic is studied by introducing the generalized subset construction method. Then the Kleene theorem in the frame of quantum logic is presented here.

关键词： quantum logic finite automaton monadic second quantum logic quantum language quantum computation Kleene theorem

A new epoch of quantum manipulation

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National Science Review 2014年第1期1卷 91-100页

作者： Yongjian Han Zhen Wang Guang-Can Guo Key Laboratory of quantum Information University of Science and Technology of China Chinese Academy of Sciences

he behavior of individual microscopic particles,such as an atom(or a photon),predicted using quantum mechanics,is dramatically diferent from the behavior of classical particles,such as a planet,determined using classical *** can the counter-intuitive behavior of the microscopic particle be veriied and manipulated experimentally?David Wineland and Serge Haroche,who were awarded the Nobel Priz in physics in 2012,developed a set of methods to isolate the ions and photons from their environment to create a genuine quantum ***,they also developed methods to measure and manipulate these quantum systems,which open a path not only to explore the fundamental principles of quantum mechanics,but also to develop a much faster computer:a quantum computer.

关键词： quantum manipulation quantum computation optical clock ion trap cavity QED

Optimal readout of superconducting qubits exploiting high-level states

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Fundamental Research 2021年第1期1卷 16-21页

作者： Can Wang Ming-Cheng Chen Chao-Yang Lu Jian-Wei Pan Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of ChinaHefeiAnhui 230026China CAS Centre for Excellence and Synergetic Innovation Centre in quantum Information and quantum Physics University of Science and Technology of ChinaHefeiAnhui 230026China

High-fidelity initialization,manipulation,and measurement of qubits are important in quantum *** the Google’s Sycamore processor,the gate fidelity of single-and two-qubit logic operations has improved to>99.6%,whereas single-shot measurement fidelity remains at the level of 97%,which severely limits the ap-plication of the superconducting approach to large-scale quantum *** current measurement scheme relies on the dispersive interaction between the qubit and the readout resonator,which was proposed back in ***,the measurement fidelity is limited by the trade-offbetween the state separation and relax-ation time of the two-level ***,an exciting phenomenon was observed experimentally,wherein the separation-decay limit could be alleviated by exploiting the cascade decay nature of the higher levels;however,the mechanism and effectiveness of this phenomenon are still ***,we present a theoretical tool to extract different types of errors in high-level states encoding dispersive *** the realistic parame-ters of Google’s Sycamore processor,the use of state|2>is sufficient to suppress 92%of the decay readout error on average,where the total readout error is dominated by the background thermal *** also show counter-intuitively that,the assistance of high-level states is effective in the measurement of logic 0,where there is no decay process.

关键词： Dispersive measurement Transmon Superconducting qubit quantum computation

Experimental realization of nonadiabatic holonomic single‐qubit quantum gates with two dark paths in a trapped ion

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Fundamental Research 2022年第5期2卷 661-666页

作者： Ming-Zhong Ai Sai Li Ran He Zheng-Yuan Xue Jin-Ming Cui Yun-Feng Huang Chuan-Feng Li Guang-Can Guo CAS Key Laboratory of quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center For Excellence in quantum Information and quantum Physics University of Science and Technology of ChinaHefei 230026China Guangdong Provincial Key Laboratory of quantum Engineering and quantum Materials and School of Physics and Telecommunication EngineeringSouth China Normal UniversityGuangzhou 510006China Guangdong-Hong Kong Joint Laboratory of quantum Matter and Frontier Research Institute for PhysicsSouth China Normal UniversityGuangzhou 510006China

For circuit-based quantum computation,experimental implementation of a universal set of quantum logic gates with high-fidelity and strong robustness is essential and *** gates induced by geometric phases,which depend only on global properties of the evolution paths,have built-in noise-resilience ***,we propose and experimentally demonstrate nonadiabatic holonomic single-qubit quantum gates on two dark paths in a trapped ^(171)γδ^(+)ion based on four-level systems with resonant *** confirm the implementation with measured gate fidelity through both quantum process tomography and randomized benchmarking ***,we find that nontrivial holonomic two-qubit quantum gates can also be realized within current experimental *** with previous implementations,our experiments share both the advantages of fast nonadiabatic evolution and robustness against systematic ***,our experiments confirm a promising method for fast and robust holonomic quantum computation.

关键词： Geometric phase quantum computation Nonadiabatic evolution Noise robustness Ion trap

quantum COLLISION SEARCH ALGORITHM AGAINST NEW FORK-256

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Journal of Electronics(China) 2014年第4期31卷 366-370页

作者： Du Fangwei Wang Hong Ma Zhi State Key Laboratory of Mathematical Engineering and Advanced Computing

In order to improve the attack efficiency of the New FORK-256 function, an algorithm based on Grover's quantum search algorithm and birthday attack is proposed. In this algorithm, finding a collision for arbitrary hash function only needs O(2m/3) expected evaluations, where m is the size of hash space value. It is proved that the algorithm can obviously improve the attack efficiency for only needing O(2 74.7) expected evaluations, and this is more efficient than any known classical algorithm, and the consumed space of the algorithm equals the evaluation.

关键词： quantum computation quantum collision Grover's search algorithm New FORK-256CLC number:TN918.1

Hybrid integration of 2D materials for on-chip nonlinear photonics

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Light(Advanced Manufacturing) 2023年第3期4卷 311-333页

作者： Vincent Pelgrin Hoon Hahn Yoon Eric Cassan Zhipei Sun QTF Centre of Excellence Department of Electronics and NanoengineeringAalto UniversityP.O.Box 13500FI-00076 AaltoFinland UniversitéParis-Saclay CNRSCentre de Nanosciences et de Nanotechnologies91120PalaiseauFrance

Interests surrounding the development of on-chip nonlinear optical devices have been consistently growing in the past decades due to the tremendous applications,such as quantum photonics,all-optical communications,optical computing,on-chip metrology,and *** efficient on-chip nonlinear optical devices to meet the requirements of those applications brings the need for new directions to improve the existing photonic *** research has directed the field of on-chip nonlinear optics toward the hybrid integration of two-dimensional layered materials(such as graphene,transition metal dichalcogenides,and black phosphorous)with various integrated *** combination of well-known photonic chip design platforms(e.g.,silicon,silicon nitride)and different two-dimensional layered materials has opened the road for more versatile and efficient structures and devices,which has the great potential to unlock numerous new *** review discusses the modeling and characterization of different hybrid photonic integration structures with two-dimensional materials,highlights the current state of the art examples,and presents an outlook for future prospects.

关键词： Integrated photonics 2D materials Nanophotonic Nonlinear optics quantum computation All-optical computing Spectroscopy Broadband light sources

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Science Bulletin 2021年第4期66卷 332-338,M0004页

作者： Baochuan Wang Ting Lin Haiou Li Sisi Gu Mingbo Chen Guangcan Guo Hongwen Jiang Xuedong Hu Gang Cao Guoping Guo CAS Key Laboratory of quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in quantum Information and quantum Physics University of Science and Technology of China.Hefei 230026China Department of Physics and Astronomy University of California at Los AngelesLos AngelesCA 90095USA Department of Physics University at BuffaloSUNYBuffaloNY 14260-1500USA Origin quantum Computing Company Limited Hefei 230026China

We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance *** distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating *** patterns are in excellent agreement with a simulation using the Tavis-Cummings model,and allow us to readily identify different parameter regimes for both qubits in the detuning *** method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity quantum electrodynamics(QED)coupled qubits.

关键词： quantum computation Semiconductor qubit Cavity quantum electrodynamics Strong coupling Semiconductor quantum dot