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Spontaneously coherent orbital coupling of counterrotating exciton polaritons in annular perovskite microcavities

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Light(Science & Applications) 2021年第3期10卷 401-408页

作者： Jun Wang Huawen Xu Rui Su Yutian Peng jinqi wu Timothy C.H.Liew Qihua Xiong Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingaporeSingapore State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijingChina MajuLab International Joint Research Unit UMI 3654CNRSUniversite Cote d'AzurSorbonne UniversiteNational University of SingaporeNanyang Technological UniversitySingaporeSingapore Beijinq Academy of Quantum Information Sciences Beiiinq 100193P.R.China

Exciton-polariton condensation is regarded as a spontaneous macroscopic quantum phenomenon with phase ordering and collective *** engineering artificial annular potential landscapes in halide perovskite semiconductor microcavities,we experimentally and theoretically demonstrate the room-temperature spontaneous formation of a coherent superposition of exciton-polariton orbital states with symmetric petal-shaped patterns in real space,resulting from symmetry breaking due to the anisotropic effective potential of the birefringent perovskite *** lobe numbers of such petal-shaped polariton condensates can be precisely controlled by tuning the annular potential *** petal-shaped condensates form in multiple orbital states,carrying locked alternating nphase shifts and vortex-anti vortex superposition cores,arising from the coupling of counterrotating exciton-polaritons in the confined circular *** geometrically patterned microcavity exhibits promise for realizing room-temperature topological polaritonic devices and optical polaritonic switches based on periodic annular potentials.

关键词： tuning annular coherent

Correlation analysis of longitudinal cracks and vertical deformation within asphalt pavement of cold regions

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Research in Cold and Arid Regions 2023年第6期15卷 278-287页

作者： Ke Chen Lun Ji ZeYu Xiao jinqi wu LinLin Xu ZhiCe Cheng Heilongjiang Provincial Highway Survey and Design Institute HarbinHeilongjiang 150080China School of Traffic Science and Engineering Harbin Institute of TechnologyHarbinHeilongjiang 150090China Heilongjiang Highway Construction Center HarbinHeilongjiang 150090China

The asphalt pavement longitudinal crack is a common distress in cold regions,resulting from uneven deformation of the *** of the correlation law between uneven deformation and crack distress is of positive significance for understanding the mechanism of crack initiation,and putting forward treatment *** view of the complexity of longitudinal crack inducement and road surface deformation,the grey relational method was used to analyze this *** long-term monitoring of the vertical deformation data of typical road sections,the vertical deformation law of the pavement surface and its deformation characteristics under the action of temperature field are *** such as vertical relative deformation,vertical relative deformation rate and vertical differential deformation VDSr were constructed to describe vertical deformation *** distribution characteristics of longitudinal fractures and their length and distribution characteristics are also *** grey correlation analysis theory was utilized to analyze the relationship between deformation characteristics of sections,cross sections and monitoring points and longitudinal crack characteristics(length and location).The analysis reveals a linear positive correlation or a high correlation between several *** study can provide a deeper understanding of the occurrence and development mechanism of longitudinal cracks in asphalt pavement of cold areas,and give references for the research of road engineering structure,materials and distress prevention.

关键词： Asphalt pavement Cold region Longitudinal crack Vertical deformation Grey relational analysis

Controllable vortex lasing arrays in a geometrically frustrated exciton-polariton lattice at room temperature

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National Science Review 2023年第1期10卷 196-204页

作者： Jun Wang Yutian Peng Huawen Xu Jiangang Feng Yuqing Huang jinqi wu Timothy C.H.Liew Qihua Xiong Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Department of Optical Science and Engineering and Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Fudan University State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua University Beijing Academy of Quantum Information Sciences

Quantized vortices appearing in topological excitations of quantum phase transition play a pivotal role in strongly correlated physics involving the underlying confluence of superfluids,Bose-Einstein condensates and *** polaritons as bosonic quasiparticles have enabled studies of non-e quilibrium quantum gases and ***-polariton condensates in artificial lattices intuitively emulate energy-band structures and quantum many-body effects of condensed matter,underpinning constructing vortex lattices and controlling quantum fluidic ***,we harness exciton-polariton quantum fluids of light in a frustrated kagome lattice based on robust metal-halide perovskite microcavities,to demonstrate vortex lasing arrays and modulate their configurations at room *** energy-momentum spectra unambiguously reveal massless Dirac bands and quenched kinetic-energy flat bands coexisting in kagome lattices,where polariton condensates exhibit prototypical honeycomb and kagome spatial *** coherence investigations illustrate two types of phase textures of polariton condensates carrying ordered quantized-vortex arrays and π-phase shifts,which could be selected when needed using lasing emission *** findings offer a promising platform on which it is possible to study quantum-fluid correlations in complex polaritonic lattices and highlight feasible applications of structured light.

关键词： vortex lasing exciton–polariton lattice Bose–Einstein condensation the orbital angular momentum of light geometric frustration perovskite semiconductor

Perovskite polariton parametric oscillator

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Advanced Photonics 2021年第5期3卷 36-43页

作者： jinqi wu Rui Su Antonio Fieramosca Sanjib Ghosh Jiaxin Zhao Timothy C.H.Liew Qihua Xiong Nanyang Technological University School of Physical and Mathematical SciencesDivision of Physics and Applied PhysicsSingapore MajuLab International Joint Research Unit UMI 3654CNRSUniversite Cote d’AzurSorbonne UniversiteNational University of SingaporeNanyang Technological UniversitySingapore Tsinghua University State Key Laboratory of Low-Dimensional Quantum PhysicsDepartment of PhysicsBeijingChina Beijing Academy of Quantum Information Sciences BeijingChina Tsinghua University Beijing Innovation Center for Future ChipsBeijingChina

Optical parametric oscillators(OPOs)have been widely applied in spectroscopy,squeezed light,and correlated photons,as well as quantum *** OPOs usually suffer from a high power threshold limited by weak high-order nonlinearity in traditional pure photonic ***,polaritonic systems based on hybridized exciton–photon quasi-particles exhibit enhanced optical nonlinearity by dressing photons with excitons,ensuring highly nonlinear operations with low power *** report an on-chip perovskite polariton parametric oscillator with a low *** the resonant excitation at a range of angles,the signal at the ground state is obtained,emerging from the polariton-polariton interactions at room *** results advocate a practical way toward integrated nonlinear polaritonic devices with low thresholds.

关键词： inorganic perovskite semiconductors exciton-polaritons parametric oscillators four-wave mixing

Evaluation of menopausal status among breast cancer patients with chemotherapy-induced amenorrhea

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Chinese Journal of Cancer Research 2018年第4期30卷 468-476页

作者： Bailin Zhang jinqi wu Rongshou Zheng Qian Zhang Margaret Zhuoer Wang Jun Qi Haijing Liu Yipeng Wang Yang Guo Feng Chen Jing Wang Wenyue Lyu Jidong Gao Yi Fang Wanqing Chen Xiang Wang Department of Breast Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Department of Breast Surgery Cancer Hospital of Huanxing Chaoyang District Beijing Office for Cancer Registry National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Department of Epidemiology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Pritzker School of Medicine University of Chicago Department of Clinical Laboratory National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Pharmacy Department Kailuan General Hospital Surgery Department Maternal and Child Health Care Hospital of Yanqing District Beijing Office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College

Objective： In patients with chemotherapy-induced amenorrhea （CIA）, the menopausal status is ambiguous anddifficult to evaluate. This study aimed to establish a discriminative model to predict and classify the menopausalstatus of breast cancer patients with ***： This is a single center hospital-based study from 2013 to 2016. The menopausal age distribution andaccumulated incidence rate of CIA are described. Multivariate models were adjusted for established and potentialconfounding factors including age, serum concentration of estradiol （E2） and follicle-stimulating hormone （FSH）,feeding, pregnancy, parity, abortions, and body mass index （BMI）. The odds ratio （OR） and 95% confidenceinterval （95% CI） of different risk factors were ***： A total of 1,796 breast cancer patients were included in this study, among whom, 1,175 （65.42%） werepremenopausal patients and 621 （34.58%） were post-menopause patients. Five hundred and fifty patients wereincluded in CIA analysis, and a cumulative CIA rate of 81.64% was found in them. Age （OR： 1.856, 95% CI：1.732-1.990）, serum concentration of E2 （OR： 0.976, 95% CI： 0.972-0.980） and FSH （OR： 1.060, 95% CI：1.053-i.066）, and menarche age （OR： 1.074, 95% CI： 1.009-1.144） were found to be associated with the patients＇menopausal status. According to multivariate analysis, the discriminative model to predict the menopausal status isLogit （P）=-28.396＋0.536Age-0.014E2＋0.031FSH. The sensitivities for this model were higher than 85%, and itsspecificities were higher than 89%.Conclusions： The discriminative model obtained from this study for predicting menstrual state is important forpremenopausal patients with CIA. This model has high specificity and sensitivity and should be prudently used.

关键词： Breast neoplasms drug therapy amenorrhea menopause logistic models

民主与自治的典范:民国大学中的教授治校制度——从北京大学到清华大学的历史考察

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高教发展与评估 2011年第1期27卷 29-40,118页

作者：吴锦旗金陵科技学院人文学院江苏南京210038

"教授治校"是一种源自于西方的大学内部管理模式,中国的大学教育在向西方学习的过程中,移植、借鉴了"教授治校"制度。它先是由北京大学开始,后来在清华大学被发扬光大,清华大学的"教授治校"制度能够长期延续和维持,有其特定的历史情境... 详细信息

"教授治校"是一种源自于西方的大学内部管理模式,中国的大学教育在向西方学习的过程中,移植、借鉴了"教授治校"制度。它先是由北京大学开始,后来在清华大学被发扬光大,清华大学的"教授治校"制度能够长期延续和维持,有其特定的历史情境和内在原因,其"教授治校"制度直到今天仍然是大学改革的方向。

关键词：民国 “教授治校”制度教授会评议会

论抗战时期教授政治参与的动力机制和形式选择

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重庆师范大学学报（哲学社会科学版） 2010年第1期 54-59页

作者：吴锦旗金陵科技学院人文学院江苏南京210038

抗战时期出现了教授大规模参与政治的景象,这是在一定的动力机制支配和驱动下学术精英的政治活动。这种动力机制决定了教授政治参与的形式选择具有制度化和合法性的特征,其目的是通过改良的方式实现中国的民主宪政。

关键词：抗战时期教授政治参与动力机制

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国民政府政治吸纳知识精英的若干变量分析

浙江师范大学学报（社会科学版） 2019年第6期44卷 91-98页

作者：吴锦旗金陵科技学院马克思主义学院

国民政府对知识精英的政治吸纳实际上是一个选择和过滤的过程,受到若干变量的影响和制约,主要包括知识精英的教育背景和职业身份、当权者的赏识和借重、学术兼职、以报刊为平台的政治圈子等。此外,包括地缘关系、学缘关系、亲缘关系在... 详细信息

国民政府对知识精英的政治吸纳实际上是一个选择和过滤的过程,受到若干变量的影响和制约,主要包括知识精英的教育背景和职业身份、当权者的赏识和借重、学术兼职、以报刊为平台的政治圈子等。此外,包括地缘关系、学缘关系、亲缘关系在内的其他因素也会起一定的作用,这些因素则成为政治吸纳过程中的潜规则。知识精英从政就是多重因素综合作用的结果。

关键词：国民政府政治吸纳知识精英

论权力分享机制下的民主党派参政——基于民主党派成员担任省(部)级实职领导职务的政治分析

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新疆社科论坛 2011年第1期 31-36页

作者：吴锦旗金陵科技学院人文学院

民主党派的参政议政是其作为参政党的职能体现,参政是指民主党派在中国共产党的领导下参与国家政权,是通过其成员为代表参与政府、人大、政协等以及担任相关实职领导职务的直接参与政治形式。民主党派成员担任各级政府部门的实职领导职... 详细信息

民主党派的参政议政是其作为参政党的职能体现,参政是指民主党派在中国共产党的领导下参与国家政权,是通过其成员为代表参与政府、人大、政协等以及担任相关实职领导职务的直接参与政治形式。民主党派成员担任各级政府部门的实职领导职务成为参政过程中的实质性内容,是民主党派参政的重要标志,它是民主党派在多党合作制度下的一种政治权力的分享机制。

关键词：民主党派参政权力分享实职领导职务政治分析