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Deterministic joint remote preparation of an arbitrary two-qubit state in the presence of noise 被引量:2
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作者 陈忠芳 刘金明 马雷 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第2期129-137,共9页
Using two tripartite Greenberger-Horne-Zeilinger (GHZ) states as the shared channels, we investigate the noise effects on the deterministic joint remote preparation of an arbitrary two-qubit state. By unitary matrix... Using two tripartite Greenberger-Horne-Zeilinger (GHZ) states as the shared channels, we investigate the noise effects on the deterministic joint remote preparation of an arbitrary two-qubit state. By unitary matrix decomposition procedure, we first construct the quantum logic circuit of the deterministic joint remote state preparation protocol. Then, we analytically derive the fidelity and the average fidelity for the deterministic joint remote preparation of an arbitrary two- qubit state and of four types of special two-qubit states under the influence of the Pauli noises. It is found that the fidelity depends on the noise types, the qubit-environment coupling strength, and the state to be remotely prepared. Moreover, even if the two GHZ channels are subject to the same environmental noises, the average fidelities for remotely preparing different two-qubit states display different time evolution behaviors. The remote preparation of the identical two-qubit states also shows that the average fidelities affected by different noisy environments exhibit different evolution actions. 展开更多
关键词 joint remote state preparation GHZ states noisy environments
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Measurement of CO,HCN,and NO productions in atmospheric reaction induced by femtosecond laser filament
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作者 黄晓东 张梦 +3 位作者 邓伦华 庞山彪 刘珂 徐淮良 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第9期152-156,共5页
It is proved that the chemical reaction induced by femtosecond laser filament in the atmosphere produces CO,HCN,and NO,and the production CO and HCN are observed for the first time.The concentrations of the products a... It is proved that the chemical reaction induced by femtosecond laser filament in the atmosphere produces CO,HCN,and NO,and the production CO and HCN are observed for the first time.The concentrations of the products are measured by mid-infrared tunable laser absorption spectroscopy.In the reduced pressure air,the decomposition of CO_(2) is enhanced by vibration excitation induced by laser filament,resulting in the enhanced production of CO and HCN.At the same time,the CO and HCN generated from the atmosphere suffer rotation excitation induced by laser filament,enhancing their absorption spectra.It is found that NO,CO,and HCN accumulate to 134 ppm,80 ppm,and 1.6 ppm in sealed air after sufficient reaction time.The atmospheric chemical reaction induced by laser filament opens the way to changing the air composition while maintaining environmental benefits. 展开更多
关键词 femtosecond laser flament atmospheric reaction CO HCN NO
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A Comparative Analysis of Consonants in Chinese and Arabic Phonetics
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作者 FAYROUZ ABDELSAMIE ELSAYED MOHAMED 《Journal of Literature and Art Studies》 2019年第11期1188-1193,共6页
Arabic and Chinese are one of the most difficult languages to learn in the world.The mark of Arabic is Pinyin characters plus pinyin symbols.On the other hand,the mark of Chinese is ideographic square shaped character... Arabic and Chinese are one of the most difficult languages to learn in the world.The mark of Arabic is Pinyin characters plus pinyin symbols.On the other hand,the mark of Chinese is ideographic square shaped characters;each pronunciation of a Chinese character is generally a syllable.There are great differences between Arabic and Chinese consonants,so this paper mainly discusses the similarities and differences between the two languages and their respective characteristics through the comparative analysis of Chinese and Arabic consonants. 展开更多
关键词 CHINESE ARABIC PRONUNCIATION CONSONANT comparison
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Comparative Analysis of The Attributes in Arabic and Chinese
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作者 MAHA MAHMOUD HAMDY MOSTAFA MOHAMED 《Journal of Literature and Art Studies》 2020年第1期36-41,共6页
Attribute is an important point in grammar knowledge,although it’s not a main component,it’s just an additional component,but it’s a very essential factor.On the contrary,it plays an important role in the expressio... Attribute is an important point in grammar knowledge,although it’s not a main component,it’s just an additional component,but it’s a very essential factor.On the contrary,it plays an important role in the expression of semantics,as well as the proper use of attributes,can help us make the expression more accurate.So far,the study based on teaching method which compared Chinese attribute to Arabic doesn’t appear in Arabian countries or China.Therefore,studying Chinese language students in which Arabic language is their native language,have many problems when they learn attribute in Chinese language.In this paper we try to find out the differences of the attribute in both languages through the comparative analysis to help us understand the problems which Arabic countries students have while studying Chinese attributes. 展开更多
关键词 ARABIC CHINESE ATTRIBUTE
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Commentary and Discussion on Zhou Ping’s Chinese Nation:Integration or Pluralism?
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作者 SONG Jinzhou 《Journalism and Mass Communication》 2021年第3期112-123,共12页
The Chinese Nation:Integration or Pluralism by Zhou Ping is an important paper in the field of political science.The connotation of“the Chinese nation”and“the nation”has aroused heated debates among the scholars o... The Chinese Nation:Integration or Pluralism by Zhou Ping is an important paper in the field of political science.The connotation of“the Chinese nation”and“the nation”has aroused heated debates among the scholars of politics and ethnology.In line with the policy of“a hundred schools of thought contend”,this paper makes targeted comments on the specific points of Zhou Ping’s paper,in particular,the connotation of“the Chinese nation”,“the integration of the Chinese nation”,“the nation”and these major issues will be discussed one by one.Finally,the author puts forward some important insights of his own. 展开更多
关键词 the Chinese nation(zhong hua min zu) the nation(min zu) state-nation(guo zu) nation-state(min zu guo jia)
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A Narrative Inquiry of the Corporate Governance Model of Shanghai Rural Revitalization:A Case Study of Cloud City Company
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作者 SONG Jinzhou 《Cultural and Religious Studies》 2022年第12期727-748,共22页
China still has 556 million rural vulnerable population in 2021,and rural revitalization has become China’s national development strategy.On December 8,2022,the author conducted an in-depth interview with the coordin... China still has 556 million rural vulnerable population in 2021,and rural revitalization has become China’s national development strategy.On December 8,2022,the author conducted an in-depth interview with the coordinator of Cloud City Company,a leading enterprise in Haishen Village,Huinan Township,Pudong New Area in Shanghai.This case sketches a panoramic picture of the co-production in Haishen Village through a qualitative research method of narrative inquiries.It provides what has happened in Haishen Village with the detailed description and some comments on Shanghai rural revitalization.This paper also raised many arguable questions to be further discussed. 展开更多
关键词 rural revitalization Cloud City Company CO-PRODUCTION
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美英澳三边安全伙伴关系:特点、影响与前景
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作者 陈晓晨 陈弘 《China International Studies》 2022年第3期48-65,共18页
In September 2021,the leaders of Australia,the United Kingdom,and the United States announced the establishment of an enhanced trilateral security partnership called AUKUS.1 Over the past few months,the three countrie... In September 2021,the leaders of Australia,the United Kingdom,and the United States announced the establishment of an enhanced trilateral security partnership called AUKUS.1 Over the past few months,the three countries have made some progress in Australia’s nuclear-powered submarine program and advanced collaboration in capacity building.Up to now,academic discussions on AUKUS within China mainly focus on the nuclear-powered submarine program,with different views on the nature. 展开更多
关键词 三边 SUBMARINE discussions
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Neuronal Response to Reward and Luminance in Macaque LIP During Saccadic Choice
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作者 Ziqi Wu Aihua Chen Xinying Cai 《Neuroscience Bulletin》 SCIE CAS CSCD 2023年第1期14-28,共15页
Recent work in decision neuroscience suggests that visual saliency can interact with reward-based choice,and the lateral intraparietal cortex(LIP)is implicated in this process.In this study,we recorded from LIP neuron... Recent work in decision neuroscience suggests that visual saliency can interact with reward-based choice,and the lateral intraparietal cortex(LIP)is implicated in this process.In this study,we recorded from LIP neurons while monkeys performed a two alternative choice task in which the reward and luminance associated with each offer were varied independently.We discovered that the animal’s choice was dictated by the reward amount while the luminance had a marginal effect.In the LIP,neuronal activity corresponded well with the animal’s choice pattern,in that a majority of reward-modulated neurons encoded the reward amount in the neuron’s preferred hemifield with a positive slope.In contrast,compared to their responses to low luminance,an approximately equal proportion of luminance-sensitive neurons responded to high luminance with increased or decreased activity,leading to a much weaker population-level response.Meanwhile,in the non-preferred hemifield,the strength of encoding for reward amount and luminance was positively correlated,suggesting the integration of these two factors in the LIP.Moreover,neurons encoding reward and luminance were homogeneously distributed along the anterior-posterior axis of the LIP.Overall,our study provides further evidence supporting the neural instantiation of a priority map in the LIP in reward-based decisions. 展开更多
关键词 REWARD LUMINANCE Attention Priority map Saccadic choice Lateral intraparietal cortex
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