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Frontiers of physics 2021年第6期16卷 99-108页

作者： qi-ping su Hanyu Zhang Chui-ping Yang Department of Physics Hangzhou Normal UniversityHangzhou 311121China Quantum Information Research Center Shangrao Normal UniversityShangrao 334001China

We present a way to transfer maximally-or partially-entangled states of n single-photon-state(SPS)qubits onto ncoherent-state(CS)qubits,by employing 2nmicrowave cavities coupled to a superconducting flux *** two logic states of a SPS qubit here are represented by the vacuum state and the single-photon state of a cavity,while the two logic states of a CS qubit are encoded with two coherent states of a *** of using only one superconducting qutrit as the coupler,the circuit architecture is significantly *** operation time for the state transfer does not increase with the increasing of the number of *** the dissipation of the system is negligible,the quantum state can be transferred in a deterministic way since no measurement is ***,the higher-energy intermediate level of the coupler qutrit is not excited during the entire operation and thus decoherence from the qutrit is greatly *** a specific example,we numerically demonstrate that the high-fidelity transfer of a Bell state of two SPS qubits onto two CS qubits is achievable within the present-day circuit QED ***,it is worthy to note that when the dissipation is negligible,entangled states of n CS qubits can be transferred back onto n SPS qubits by performing reverse *** proposal is quite general and can be extended to accomplish the same task,by employing a natural or artificial atom to couple 2nmicrowave or optical cavities.

关键词： entangled state single-photon-state qubit coherent-state qubit circuit QED

Efficient scheme for realizing a multiplex-controlled phase gate with photonic qubits in circuit quantum electrodynamics

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Frontiers of physics 2022年第5期17卷 125-135页

作者： qi-ping su Yu Zhang Liang Bin Chui-ping Yang School of Physics Hangzhou Normal UniversityHangzhou 311121China School of Physics Nanjing UniversityNanjing 210093China Quantum Information Research Center Shangrao Normal UniversityShangrao 334001China

We propose an efficient scheme to implement a multiplex-controlled phase gate with multiple photonic qubits simultaneously controlling one target photonic qubit based on circuit quantum electrodynamics(QED).For convenience,we denote this multiqubit gate as MCP *** gate is realized by using a two-level coupler to couple multiple *** coupler here is a superconducting *** scheme is simple because the gate implementation requires only one step of *** addition,this scheme is quite general because the two logic states of each photonic qubit can be encoded with a vacuum state and an arbitrary non-vacuum state|φ>(e.g.,a Fock state,a superposition of Fock states,a cat state,or a coherent state,etc.)which is orthogonal or quasi-orthogonal to the vacuum *** scheme has some additional advantages:because only two levels of the coupler are used,i.e.,no auxiliary levels are utilized,decoherence from higher energy levels of the coupler is avoided;the gate operation time does not depend on the number of qubits;and the gate is implemented deterministically because no measurement is *** an example,we numerically analyze the circuit-QED based experimental feasibility of implementing a three-qubit MCP gate with photonic qubits each encoded via a vacuum state and a cat *** scheme can be applied to accomplish the same task in a wide range of physical system,which consists of multiple microwave or optical cavities coupled to a two-level coupler such as a natural or artificial atom.

关键词： multiplex controlled phase gate circuit QED

Preparation of maximally-entangled states with multiple cat-state qutrits in circuit QED

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Frontiers of physics 2024年第3期19卷 239-251页

作者： Chui-ping Yang Jia-Heng Ni Liang Bin Yu Zhang Yang Yu qi-ping su Department of Physics Hangzhou Normal UniversityHangzhou 311121China School of Physics Nanjing UniversityNanjing 210093China Institute for Quantum Science and Technology University of CalgaryAlberta T2N 1N4Canada

In recent years,cat-state encoding and high-dimensional entanglement have attracted much ***,previous works are limited to generation of entangled states of cat-state qubits(two-dimensional entanglement with cat-state encoding),while how to prepare entangled states of cat-state qutrits or qudits(high-dimensional entanglement with cat-state encoding)has not been *** here propose to generate a maximally-entangled state of multiple cat-state qutrits(three-dimensional entanglement by cat-state encoding)in circuit *** entangled state is prepared with multiple microwave cavities coupled to a superconducting flux ququart(a four-level quantum system).This proposal operates essentially by the cavity-qutrit dispersive *** circuit hardware resource is minimized because only a coupler ququart is *** higher intermediate level of the ququart is occupied only for a short time,thereby decoherence from this level is greatly suppressed during the state ***,the state preparation time does not depend on the number of the qutrits,thus it does not increase with the number of the *** an example,our numerical simulations demonstrate that,with the present circuit QED technology,the high-fidelity preparation is feasible for a maximally-entangled state of two cat-state ***,we numerically analyze the effect of the inter-cavity crosstalk on the scalability of this *** proposal is universal and can be extended to accomplish the same task with multiple microwave or optical cavities coupled to a natural or artificial four-level atom.

关键词： maximally-entangled states cat state qutrit circuit QED

Quantum simulation of Hofstadter butterfly with synthetic gauge fields on two-dimensional superconducting-qubit lattices

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Frontiers of physics 2023年第6期18卷 283-290页

作者： Wei Feng Dexi Shao Guo-qiang Zhang qi-ping su Jun-Xiang Zhang Chui-ping Yang School of Physics Hangzhou Normal UniversityHangzhou 311121China School of Physics Zhejiang UniversityHangzhou 310027China

Motivated by recent realizations of two-dimensional(2D)superconducting-qubit lattices,we propose a protocol to simulate Hofstadter butterfly with synthetic gauge fields in superconducting *** on the existing 2D superconducting-qubit lattices,we construct a generalized Hofstadter model on zigzag lattices,which has a fractal energy spectrum similar to the original Hofstadter *** periodically modulating the resonant frequencies of qubits,we engineer a synthetic gauge field to mimic the generalized Hofstadter Hamiltonian.A spectroscopic method is used to demonstrate the Hofstadter butterfly from the time evolutions of experimental *** numerically simulate the dynamics of the system with realistic parameters,and the results show a butterfly spectrum *** proposal provides a promising way to realize the Hofstadter butterfly on the latest 2D superconducting-qubit lattices and will stimulate the quantum simulation of novel properties induced by magnetic fields in superconducting circuits.

关键词： quantum simulation superconducting circuits superconducting qubit quantum computation

Uncertainty relations for triples of observables and the experimental demonstrations

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 97-105页

作者： Huang-qiu-Chen Wang Bo Liu Yong-Nan sun qi-ping su Zhe sun Xiaoguang Wang School of Physics Hangzhou Normal UniversityHangzhou 310036China School of Information and Electrical Engineering Hangzhou City UniversityHangzhou 310015China Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhou 310018China

Uncertainty relations are of profound significance in quantum mechanics and quantum information *** well-known Heisenberg-Robertson uncertainty relation presents the constraints on the spread of measurement outcomes caused by the non-commutability of a pair of *** this article,we study the uncertainty relation of triple observables to explore the relationship between the standard deviations and the commutators of the *** derive and tighten the multiplicative form and weighted summation form uncertainty relations,which are found to be dependent not only on the commutation relations of each pair of the observables but also on a newly defined commutator in terms of all the three *** experimentally test the uncertainty relations in a linear optical *** experimental and numerical results agree well and show that the uncer-tainty relations derived by us successfully present tight lower bounds in the cases of high-dimensional observables and the cases of mixed *** method of deriving the uncertainty relation can be extended to more than three observables.

关键词： Heisenberg-Robertson uncertainty relation three observables commutation relation linear optical setup

On University Campus Landscape Design

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海外英语 2014年第3X期 166-169,183页

作者：李锋祁素萍 Tianjin University of Science & Technology

In a few years,with the progress of China's society,material needs and spiritual needs are in the corresponding *** needs and requirements of society for talents are in the unceasing increase and improvement,and certainly will need to increase the country's national *** country put forward the strategy of developing the country through science and education,and the university education is the center of *** our country on the one hand,through expanding enrollment rate,let more people to accept higher education;On the other hand,through increasing the investment of the infrastructure construction in colleges and universities,the campus can satisfy the need of more *** with the progress of market economy and urban modernization,the campus development level has become an important symbol in measuring the progress of a city,a regional economic and cultural *** is also the origin to transport all kinds of advanced talents for *** construction of university campus is gradually developed in such an environment,striving to reflect new period,new era university campus's new look and new *** to develop the campus to which has its own characteristic humanities landscape and put the characteristic of open and humanistic,functional and artistic quality,ecological and sustainable in organic combination of unity,advancing with The Times.

关键词： Landscape Design University Town Ecological Campus

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印刷机械故障监测及诊断技术研究

数字印刷 2019年第6期 11-15页

作者：齐素平陕西北人印刷机械有限责任公司渭南714000

印刷包装产业的日益发展,离不开逐渐精密化、高速化的印刷机械。人们对于印刷品质量的要求越来越高,也促使印刷机械的性能越来越卓越。本研究基于对已有机械故障诊断方法的分析,对国内外印刷机械故障监测技术的研究情况和发展趋势进行... 详细信息

印刷包装产业的日益发展,离不开逐渐精密化、高速化的印刷机械。人们对于印刷品质量的要求越来越高,也促使印刷机械的性能越来越卓越。本研究基于对已有机械故障诊断方法的分析,对国内外印刷机械故障监测技术的研究情况和发展趋势进行了分析,认为未来印刷机械故障监测要融合多元信息,对印刷机械故障进行全面预示,从而降低生产成本,提高生产质量,而如何将故障监测技术进行模块化以满足不同客户的需求亦是未来研究的重点之一。

关键词：故障诊断印刷机械多元信息融合

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渗透在平面设计中的触觉设计

包装工程 2008年第11期29卷 187-188,192页

作者：孙汝淑祁素萍天津科技大学天津300457

从触觉设计的相关涵义出发,结合日本设计大师原研哉先生的一系列设计实例,分析了触觉设计的应用,旨在让人们了解到触觉设计虽为平面的视觉形式范畴,却能够传达出超越视觉的感动。

关键词：触觉触觉设计质地肌理

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关于公众参与城市公共安全管理的几点思考

江苏海洋大学学报（人文社会科学版） 2011年第8期9卷 4-5页

作者：祁素萍陈萍天津科技大学艺术设计学院天津300457

公众参与城市公共安全管理对于调动人们关心、爱护自己家园的积极性和责任心,培养集体主义和互助意识具有重要的作用。在分析公众参与公共安全管理影响因素和存在的主要问题的基础上,就公众参与城市公共安全管理的有效途径进行了深入的... 详细信息

公众参与城市公共安全管理对于调动人们关心、爱护自己家园的积极性和责任心,培养集体主义和互助意识具有重要的作用。在分析公众参与公共安全管理影响因素和存在的主要问题的基础上,就公众参与城市公共安全管理的有效途径进行了深入的探讨,旨在使社会资源得到更有效地开发利用,保持城市健康持续发展。

关键词：公众参与城市公共安全管理责任心凝聚力

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共享阳光——无障碍园林建设的思考

中国园林 2011年第8期27卷 81-84页

作者：祁素萍朱明丽余茜天津科技大学艺术设计学院

对无障碍园林建设的重视在一定程度上反映了社会的文明与进步,是物质文明和精神文明的重要体现,对推动和谐社会建设具有重要的作用。开展无障碍园林设计及其安全性研究,探索其建设的有效途径,是园林持续发展和发挥其服务功能的基础。从... 详细信息

对无障碍园林建设的重视在一定程度上反映了社会的文明与进步,是物质文明和精神文明的重要体现,对推动和谐社会建设具有重要的作用。开展无障碍园林设计及其安全性研究,探索其建设的有效途径,是园林持续发展和发挥其服务功能的基础。从无障碍园林设施、景观标识、道路等方面进行了较全面的探讨,指出目前我国无障碍园林建设中存在的问题,提出无障碍园林建设可采取的措施与方法,以期为更多的人提供方便、安全、平等的户外活动空间,为推动我国无障碍园林建设提供参考。

关键词：风景园林无障碍设计安全性