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运用Kraus算子分析红宝石激光器中离子密度矩阵元的演化 被引量:2
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作者 张登玉 陈桥 唐志祥 《激光杂志》 CAS CSCD 北大核心 2005年第2期29-31,共3页
红宝石激光器是一个三能级系统。本文基于Kraus算子理论,针对能级间同时存在吸收和辐射的情况,研讨密度矩阵元的演化特性。结果表明在粒子分别以大概率从基态跃迁到第二激发态和从第二激发态辐射到第一激发态过程中形成粒子数反转,为产... 红宝石激光器是一个三能级系统。本文基于Kraus算子理论,针对能级间同时存在吸收和辐射的情况,研讨密度矩阵元的演化特性。结果表明在粒子分别以大概率从基态跃迁到第二激发态和从第二激发态辐射到第一激发态过程中形成粒子数反转,为产生激光作准备;在粒子以大概率从第一激发态辐射到基态时,产生激光。 展开更多
关键词 三能级系统 激光器 密度矩阵 kraus算子
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振幅阻尼信道下两量子比特的联合Kraus算子表示(英文)
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作者 杨青 甄秀兰 +1 位作者 杨名 曹卓良 《量子电子学报》 CAS CSCD 北大核心 2014年第6期710-714,共5页
振幅阻尼噪声存在于大量具有能量损失的真实量子比特系统中。利用两原子和单模腔共振相互作用的普遍模型,推导出振幅阻尼信道下两量子比特系统的联合Kraus算子表示。这为解决与量子信息处理相关的具体过程提供了有效方法,例如两量子比... 振幅阻尼噪声存在于大量具有能量损失的真实量子比特系统中。利用两原子和单模腔共振相互作用的普遍模型,推导出振幅阻尼信道下两量子比特系统的联合Kraus算子表示。这为解决与量子信息处理相关的具体过程提供了有效方法,例如两量子比特纠缠分发和量子纠错。由于其普适性和计算的简便性,该方法还有助于解决很多实际的物理问题。 展开更多
关键词 量子光学 kraus算子 振幅阻尼 两量子比特
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解构与重构——庞德汉诗译作在美国的经典化
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作者 姚成贺 崔放 《燕山大学学报(哲学社会科学版)》 2024年第1期39-46,共8页
庞德《华夏集》中的多数汉诗译作超越了中国本土学者的译作,在美国成为了经典。其汉诗译作最重要的特点便是对原作的解构与重构。通过对庞德译作中解构与重构现象的分析,发现这是庞德个人诗学与社会诗学相结合的过程。同时,一些其他因... 庞德《华夏集》中的多数汉诗译作超越了中国本土学者的译作,在美国成为了经典。其汉诗译作最重要的特点便是对原作的解构与重构。通过对庞德译作中解构与重构现象的分析,发现这是庞德个人诗学与社会诗学相结合的过程。同时,一些其他因素如赞助人也推动了其汉诗译作的经典化。其经典化过程,给当下的翻译活动带来一定的借鉴与启发。 展开更多
关键词 庞德 个人诗学 社会诗学 诗歌翻译
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Stylistic Analysis of Ezra Pound's Cathay
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作者 梁春丽 《海外英语》 2014年第22期195-197,共3页
Cathay by Ezra Pound is the masterpiece in modern poetry in the West,and it contains nineteen Chinese poems.Based on literary stylistic theory,Pound’s translation style in Cathay is analyzed from lexical categories,a... Cathay by Ezra Pound is the masterpiece in modern poetry in the West,and it contains nineteen Chinese poems.Based on literary stylistic theory,Pound’s translation style in Cathay is analyzed from lexical categories,aspects of syntax and figures of speech etc.It is found that the vocabulary and sentences in Cathay are very simple and brief,and the language is rich of images,which is the exact reflection of Pound’s idea of Imagism. 展开更多
关键词 STYLISTICS ezra POUND LEXICAL SYNTAX FIGURES of sp
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Yijing and Sense-Grammar as Possible Fields for Innovation of Modern English-Language Poetry,with Discussions on the Influence of Chinese Poetry on Ezra Pound and Imagism
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作者 黎志敏 《英美文学研究论丛》 CSSCI 2018年第1期172-190,共19页
尽管庞德和他的同伴们从中国传统诗歌中学到了不少东西,并且因此推动英语诗歌取得了巨大的创新成就,他们还是忽视了中国诗学中的许多精华,这限制了他们在创新方面的进一步发展。中国传统诗学中极有可能进一步推动英语诗歌发展的两个概... 尽管庞德和他的同伴们从中国传统诗歌中学到了不少东西,并且因此推动英语诗歌取得了巨大的创新成就,他们还是忽视了中国诗学中的许多精华,这限制了他们在创新方面的进一步发展。中国传统诗学中极有可能进一步推动英语诗歌发展的两个概念是:"意境"与"会意语法"。"意境"乃是由一群巧妙构思的意象所构成的一种五维诗意世界,而不是单个意象或者几个叠置意象,也不是几个按照时间顺序松散连接的意象。"会意语法"所反映的是人们在日常生活以及常识的基础上所形成的一种超越语法局限的对语言的理解能力。"会意语法"是创作好诗的关键所在,尤其是创作有深厚蕴涵的意境的诗歌的关键所在。 展开更多
关键词 中国诗歌与诗学 庞德 意境 会意语法
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From the Poem ‘Blue,blue is the Grass’ to Explore the impact of Chinese Classical Poetry on Ezra Pound
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作者 王新 《科技信息》 2011年第12期181-182,共2页
Blue,blue is the grass,Ezra Pound's version of a classical Chinese poetry,has enjoyed great popularity in the English reading public since its coming out in 1915.Through his translation Pound brought freshness int... Blue,blue is the grass,Ezra Pound's version of a classical Chinese poetry,has enjoyed great popularity in the English reading public since its coming out in 1915.Through his translation Pound brought freshness into English poetry on the one hand,and disseminated Chinese culture on the other.And these verses happened to be a great stimulus as the Renaissance from the Greeks to the imagist poetry movement.This paper aims at a penetrating analysis of the impact of Chinese classical poetry on imagist poet Ezra Pound. 展开更多
关键词 英语 古典 诗歌 中国
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Ezra Pound's Conversion to Confucianism 被引量:2
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作者 TAN Xiao-cui 《Journal of Literature and Art Studies》 2014年第3期165-173,共9页
关键词 儒家思想 精神生活 基督教 儒学 现代人 社会 道德 自然
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Kraus operator solutions to a fermionic master equation describing a thermal bath and their matrix representation 被引量:2
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作者 孟祥国 王继锁 +1 位作者 范洪义 夏承魏 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第4期42-46,共5页
We solve the fermionic master equation for a thermal bath to obtain its explicit Kraus operator solutions via the fermionic state approach. The normalization condition of the Kraus operators is proved. The matrix repr... We solve the fermionic master equation for a thermal bath to obtain its explicit Kraus operator solutions via the fermionic state approach. The normalization condition of the Kraus operators is proved. The matrix representation for these solutions is obtained, which is incongruous with the result in the book completed by Nielsen and Chuang [Quantum Computation and Quantum Information, Cambridge University Press, 2000]. As especial cases, we also present the Kraus operator solutions to master equations for describing the amplitude-decay model and the diffusion process at finite temperature. 展开更多
关键词 矩阵表示 克劳斯 主方程 费米子 算子 浴缸 量子信息 量子计算
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The Function of Colour in Ezra Pound's Imagist Poetry
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作者 于质洁 《海外英语》 2012年第14期196-197,共2页
This paper is to explore the function of colour in Ezra Pound's Imagist poetry.As the position of image in poetry is raised,colour,as a part making up image,play a much more positive role in Pound's Imagist po... This paper is to explore the function of colour in Ezra Pound's Imagist poetry.As the position of image in poetry is raised,colour,as a part making up image,play a much more positive role in Pound's Imagist poems by defining the image to be more concrete and definite and reinforcing the theme directly.Pound's Imagist poetry includes his typical short Imagist poems and his poems in Cathay. 展开更多
关键词 ezra POUND IMAGISM COLOUR IMAGE
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Deformation of Superoperator's Kraus Representation Derived by Weyl Correspondence and Entangled State Representation
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作者 HU Li-Yun FAN Hong-Yi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第10期879-882,共4页
By virtue of the Weyl correspondence and based on the the technique of integration within an orderedproduct of operators,we show under what condition the superoperator's Kraus representation ρ'=∑_μ A_(μρ... By virtue of the Weyl correspondence and based on the the technique of integration within an orderedproduct of operators,we show under what condition the superoperator's Kraus representation ρ'=∑_μ A_(μρ)A_μ^+ can bedeformed as ρ' = (1/π) ∫ d^2αB(α)D(α)ρD^+ (α),where D(α) is the displacement operator,B(α) is a probability densityrelated to the classical Weyl correspondence of A_μ.An alternate discussion by using the entangled state representationand through a quantum teleportation process is also presented. 展开更多
关键词 变形方法 理论数学 试验研究 线性数学
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The Schizophrenic Utterance in Chris Kraus’s I Love Dick
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作者 马春玉 《海外英语》 2021年第1期209-211,共3页
The novel I Love Dick,written by Chris Kraus,discusses the“least described”social problem.The novel starts with describing Chris’s love affair.Her love affair is narrated with her illustrations of some social probl... The novel I Love Dick,written by Chris Kraus,discusses the“least described”social problem.The novel starts with describing Chris’s love affair.Her love affair is narrated with her illustrations of some social problems that are shrunk into personal problems.This article aims to examine how she uses the schizophrenic utterances to illustrate the failure of her love affair differently. 展开更多
关键词 Chris kraus’s I Love Dick the Problem of Existing Language Unbridgeable the Schizophrenic Utterance a New Possibility
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The Major Western Cultural Influences on the Incubating Process of Ezra Pound's Early Poetics
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作者 WEI Shu 《Journal of Literature and Art Studies》 2013年第4期213-223,共11页
关键词 西方文化 早期 孵化过程 现代主义 传统文化 继承传统 象征主义 诗歌
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Confucian Thoughts in Ezra Pound's The Pisan Cantos
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作者 WANG Gui-ming 《Journal of Literature and Art Studies》 2013年第10期601-610,共10页
关键词 儒家思想 中国文化 西方
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The Travelling Muse Cathay and the Influence of Chinese Classical Poems on Ezra Pound's Poetics*
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《Journal of Literature and Art Studies》 2013年第9期547-552,共6页
关键词 诗歌创作 古典 中国 旅行 地铁车站 浪漫主义 早期 航空
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Review and Analysis: Did the United States Transport, Off-Load and Use Commercial 2,4,5-T Herbicides with Unknown Amounts of Dioxin TCDD on Military Base Grounds in Panama Canal Zone between 1948 and 1999?
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作者 Kenneth R. Olson 《Open Journal of Soil Science》 2023年第11期490-515,共26页
The 84 km Panama Canal connecting the Atlantic and Pacific oceans has historically been a strategic waterway for shipping and the location of United States (US) military bases. Since the construction of Lake Gatun res... The 84 km Panama Canal connecting the Atlantic and Pacific oceans has historically been a strategic waterway for shipping and the location of United States (US) military bases. Since the construction of Lake Gatun reservoir, canal locks and navigation channel through the Isthmus of Panama tropical forests in the 1910s, chemicals, pesticides, and herbicides have been essential for controlling upland and wetland vegetation as well as managing mosquito-borne diseases. Chemicals and pesticides flowed into Lake Gatun via land surface runoff and subsurface drainage either attached to the sediment or in solution during the rainy season. Lake Gatun and the Panama Canal was the drinking water source for most of the civilian and military population living in the Panama Canal Zone. Between 1948 and 1999, US military base commanders had the ability to order, from the Federal Supply Catalog, commercially available herbicide 2,4,5-T with unknown amounts of dioxin TCDD for use on the military base grounds in the Panama Canal Zone. The herbicide 2,4,5-T was transported to Panama Canal Zone ports, including the ports Cristobal on the Caribbean and Balboa on the Pacific, and distributed to the US military bases in Panama by rail or truck. The US National Toxicology Program and the International Agency for the Research on Cancer listed dioxin and TCDD as known human carcinogens. Dioxins are endocrine disrupters and can cause certain chloracne, cancers, developmental and reproductive effects. In 1985, the United States government banned the manufacture of the herbicide 2,4,5-T, with unknown amounts of dioxin TCDD, after it was shown to cause cancer in animals. The objectives of this study are to determine: 1) the fate of dioxin TCDD, a contaminant in the herbicide 2,4,5-T, sprayed on the US military base vegetation in the Panama Canal Zone from 1948 to 1999, 2) the transport of dioxin TCDD rich sediment via soil erosion and overland flow into Lake Gatun and Panama Canal waterways and 3) the human health impacts of dioxin TCDD, a known carcinogen, on US military and Panamanian civilians exposed to dioxin TCDD in the Panama Canal Zone. 展开更多
关键词 DIOXIN TCDD Agent Orange 2 4 5-T Panama Canal Zone Commercial Herbicides US Department of Defense Fort Sherman Monsanto ezra kraus
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意象:Ezra Pound的意象诗与中国古典诗歌的语言比较
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作者 庞军 《河池师专学报》 1998年第3期81-82,42,共3页
关键词 ezra POUND 意象诗 中国 古典诗歌 语言 比较 庞德
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退相干演化对Jaynes-Cummings模型影响的考察
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作者 黄艺漫 马雷 《华东师范大学学报(自然科学版)》 CAS CSCD 北大核心 2023年第4期101-108,共8页
使用混态演化的Kraus求和方法,考虑在退极化模式下,基于Jaynes-Cummings模型设定初态,对退相干时间演化后末态的保真度与von Neumann熵的变化进行了讨论分析.结果表明,存在退相干演化的量子态保真度会随时间发生衰减振荡至稳定,而von Ne... 使用混态演化的Kraus求和方法,考虑在退极化模式下,基于Jaynes-Cummings模型设定初态,对退相干时间演化后末态的保真度与von Neumann熵的变化进行了讨论分析.结果表明,存在退相干演化的量子态保真度会随时间发生衰减振荡至稳定,而von Neumann熵会随时间发生振幅减小的振荡变化. 展开更多
关键词 退相干 JAYNES-CUMMINGS模型 kraus求和 保真度 von Neumann熵
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基于智能网联环境的信号交叉口排队长度估算模型研究
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作者 寇子卿 张洁 张萌萌 《计算机科学与应用》 2023年第12期2528-2535,共8页
为了能够计算信号交叉口的动态排队长度,基于排队论模拟车辆排队与消散,建立信号交叉口动态排队长度计算模型。首先,根据排队长度的定义来界定本文所计算的排队长度;其次,将车辆排队过程视为车辆在遇前方有固定物时的减速停车过程,以此... 为了能够计算信号交叉口的动态排队长度,基于排队论模拟车辆排队与消散,建立信号交叉口动态排队长度计算模型。首先,根据排队长度的定义来界定本文所计算的排队长度;其次,将车辆排队过程视为车辆在遇前方有固定物时的减速停车过程,以此来描述排队行为并建立车辆排队模型;然后,根据改进的Kraus模型及车辆位移公式,计算每辆车的到达率,并通过到达率计算排队车辆数及排队长度;最后,基于sumo仿真平台,进行模拟仿真实验。结果表明,本文基于改进的Kraus模型建立的排队长度模型,可以提高计算信号交叉口排队长度的准确度。 展开更多
关键词 智能网联环境 排队长度 kraus模型 sumo仿真平台
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论庞德《华夏集》的翻译诗学意义
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作者 魏春莲 《湖州职业技术学院学报》 2023年第2期52-56,共5页
自《华夏集》问世以来,中外学者试图多角度解读其误读、误译。美国诗人埃兹拉·庞德(以下简称庞德)在翻译《华夏集》时不懂中文,其翻译是借助厄内斯特·费诺罗萨的笔记对古诗词进行的创译。以《华夏集》中的李白译诗为研究对象... 自《华夏集》问世以来,中外学者试图多角度解读其误读、误译。美国诗人埃兹拉·庞德(以下简称庞德)在翻译《华夏集》时不懂中文,其翻译是借助厄内斯特·费诺罗萨的笔记对古诗词进行的创译。以《华夏集》中的李白译诗为研究对象,通过对原文、费氏笔记和译文的三向对比,探讨庞德的诗学主张如何使其有意偏离费氏笔记,创译了李白诗歌。庞德的创译具有世界文学性翻译诗学意义,使英语诗歌的主题、手段与意象呈现出新奇化,丰富了英语诗歌形式库,实现了目标语文化的诗学革新。中国古诗词也因此进入20世纪西方读者的视野。 展开更多
关键词 埃兹拉·庞德 《华夏集》 翻译诗学 创译
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