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双光子Jaynes-Cummings模型中的Schrdinger-Cat态及其演化特性 被引量:1
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作者 黄燕霞 《量子光学学报》 CSCD 1998年第3期154-159,共6页
文章采用密度算符间的距离充分论证了双光子Jaynes-Cummings模型在初始相干光场较强时(n》1)在某些特定时刻(gt=(2m+1)π4,m=0,1,2,…)腔场演化为振幅相同而位相差为π2或32π的两个相干态... 文章采用密度算符间的距离充分论证了双光子Jaynes-Cummings模型在初始相干光场较强时(n》1)在某些特定时刻(gt=(2m+1)π4,m=0,1,2,…)腔场演化为振幅相同而位相差为π2或32π的两个相干态的叠加态,即Schrdinger-Cat态,给出了Schrdinger-Cat态的演化图象。 展开更多
关键词 密度算符 薛定锷方程 双光子 猫态 J-C模型
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光纤孤子的量子特性:压缩态和类薛定谔猫态(Schrdinger-cat-like states)
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作者 朱洪波 杨伯君 《量子光学学报》 CSCD 2004年第4期147-152,共6页
利用与时间有关的Hartree近似法证明借助非线性Mach-Zehnder干涉仪可以得到光孤子的光子数压缩态<(Δ^N)2>min~<^N>1/3,并且指出在一些特定时刻光纤孤子会呈现出类薛定谔猫态(Schr dinger-cat-likestates)。
关键词 光孤子 Hartree近似 光子数压缩态 类薛定谔猫态
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V型三能级原子与双模光场相互作用的演化及Schrdinger猫态的制备 被引量:6
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作者 戴宏毅 李承祖 +1 位作者 陈平形 梁林梅 《量子光学学报》 CSCD 2002年第1期36-41,共6页
详细研究了一个V型三能级原子与双模光场的相互作用。结果表明 :在原子与场的失谐量较大的情况下 ,基态能级可被绝热消除 ,从而把这一模型简化为一个等效的二能级原子与双模场相互作用的非简并Raman耦合模型 ,分别得出了非简并Raman耦... 详细研究了一个V型三能级原子与双模光场的相互作用。结果表明 :在原子与场的失谐量较大的情况下 ,基态能级可被绝热消除 ,从而把这一模型简化为一个等效的二能级原子与双模场相互作用的非简并Raman耦合模型 ,分别得出了非简并Raman耦合模型和简并Raman耦合模型系统的改进型有效哈密顿量和波函数。在此基础上通过对腔中原子进行选态测量 ,提出一种由具有可控权重因子和位相的相干叠加态组成的制备Schr 展开更多
关键词 V型三能级原子 Raman耦合模型 schroedinger猫态 选态测量 量子光学 双模光场 相互作用 量子信息
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制备多模Schrdinger猫态的一种新方案 被引量:2
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作者 林秀 李洪才 《量子电子学报》 CAS CSCD 北大核心 2001年第6期508-511,共4页
提出一种制备多模相干态的叠加态,即Schr dinger猫态的方案.在这个方案中,一个V型三能级原于被注入多个处于相干态的腔.通过Raman相互作用,使整个系统处于纠缠状态,然后对原子进行探测,则腔场组成系统将坍缩到... 提出一种制备多模相干态的叠加态,即Schr dinger猫态的方案.在这个方案中,一个V型三能级原于被注入多个处于相干态的腔.通过Raman相互作用,使整个系统处于纠缠状态,然后对原子进行探测,则腔场组成系统将坍缩到多模 Schr■dinger猫态.在一定的条件下,这个猫态等同于一个GHZ(Greenberger-Horne-Zeilinger)态,可用来检验局域理论. 展开更多
关键词 多模schroedinger猫态 V型三能级原子 RAMAN相互作用 多模相干态
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一类Schrdinger方程混合问题解的H^s(Ω)有界性 被引量:3
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作者 邓丽洪 《四川师范大学学报(自然科学版)》 CAS CSCD 2000年第3期232-235,共4页
研究一类高维空间中Schr dinger方程混合问题解在Hs(Ω)中的有界性 ,其结果在研究整体解时是非常重要的 .
关键词 有界性 薛定谔方程 混合问题 非线性
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两态叠加Schrdinger猫态光场的两种测不准态
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作者 薛红 《渭南师范学院学报》 2004年第2期14-17,共4页
根据多模压缩态理论,详细研究了两态叠加Schr¨odinger猫态光场的压缩特性.发现:在一定的条件下,该光场将不呈现等幂次的Y和H压缩效应以及等幂次的N-Y和N-H最小测不准态;而呈现出等幂次的N-Y测不准态和N-H测不准态.
关键词 两态叠加schroedinger猫态光场 压缩态 等幂次N-Y测不准态 等幂次N-H测不准态 多模压缩态 多模辐射光场
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Nonreciprocal generation of Schrodinger cat state induced by topology
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作者 Zi-Hao Li Li-Li Zheng +1 位作者 Ying Wu Xin-You Lü 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2024年第4期23-30,共8页
The Schrodinger cat state produced differently in two directions is anticipated to be a critical quantum resource in quantum information technologies.By exploring the interplay between quantum nonreciprocity and topol... The Schrodinger cat state produced differently in two directions is anticipated to be a critical quantum resource in quantum information technologies.By exploring the interplay between quantum nonreciprocity and topology in a one-dimensional microcavity array,we obtain the Schrodinger cat state(a pure quantum state)in a chosen direction at the edge cavity,whereas a classical state in the other direction.This nonreciprocal generation of the cat state originates from the topologically protected chiralitymode excitation in the nontrivial phase,but in the trivial phase,the nonreciprocal generation of cat state vanishes.Thus,our proposal is switchable by tuning the parameters so that a topological phase transition occurs.Moreover,the obtained cat state has nonreciprocal high fidelity,nonclassicality,and quantum coherence,which are sufficient to be used in various one-way quantum technologies,e.g.,invisible quantum sensing,noise-tolerant quantum computing,and chiral quantum networks.Our work provides a general approach to control quantum nonreciprocities with the topological effect,which substantially broadens the fields of nonreciprocal photonics and topological physics. 展开更多
关键词 schr?dinger cat state NONRECIPROCITY TOPOLOGY
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ENTROPICAL OPTIMAL TRANSPORT,SCHRODINGER'S SYSTEM AND ALGORITHMS
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作者 Liming WU 《Acta Mathematica Scientia》 SCIE CSCD 2021年第6期2183-2197,共15页
In this exposition paper we present the optimal transport problem of Monge-Ampère-Kantorovitch(MAK in short)and its approximative entropical regularization.Contrary to the MAK optimal transport problem,the soluti... In this exposition paper we present the optimal transport problem of Monge-Ampère-Kantorovitch(MAK in short)and its approximative entropical regularization.Contrary to the MAK optimal transport problem,the solution of the entropical optimal transport problem is always unique,and is characterized by the Schrödinger system.The relationship between the Schrödinger system,the associated Bernstein process and the optimal transport was developed by Léonard[32,33](and by Mikami[39]earlier via an h-process).We present Sinkhorn’s algorithm for solving the Schrödinger system and the recent results on its convergence rate.We study the gradient descent algorithm based on the dual optimal question and prove its exponential convergence,whose rate might be independent of the regularization constant.This exposition is motivated by recent applications of optimal transport to different domains such as machine learning,image processing,econometrics,astrophysics etc.. 展开更多
关键词 entropical optimal transport schrödinger system sinkhorn’s algorithm gradient descent
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在部分次线性情形下Schrdinger系统无穷多解的存在性
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作者 孟亚君 冯晓晶 《云南民族大学学报(自然科学版)》 CAS 2019年第1期58-61,共4页
运用改进的Clark定理,证明了一类次线性薛定谔系统的无穷多解存在性.
关键词 schrdinger-Poisson方程 Clark定理 无穷多解
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一类关联双模Schrdinger描态的制备
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作者 解成俊 《吉林师范学院学报》 1998年第5期52-54,共3页
本文研究了Ⅴ型三能级原子与一个双模光场的共振相互作用,并讨论了在任意依赖强度耦合的多光子情况下的一类关联双模Schrodinger描态的制备.
关键词 关联双模schrdinger描态 双模光场与三能级原子相互作用 测量
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Circular Scale of Time as a Guide of the Schrödinger’s Perturbation Theory
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作者 S. Olszewski 《Journal of Modern Physics》 CAS 2022年第7期1080-1092,共13页
The paper is a kind of a review which considers an investigation of the scale of time suggested by an application of the Schr&ouml;dinger perturbation method, especially when the perturbation of a non-degenerate q... The paper is a kind of a review which considers an investigation of the scale of time suggested by an application of the Schr&ouml;dinger perturbation method, especially when the perturbation of a non-degenerate quantum state is examined. In fact the method was applied in numerous cases—also by Schr&ouml;dinger himself—without any use of the notion of time. Simultaneously, because of the development of computers, their use in solving the perturbation problems gradually decreased. However, the point of importance in the paper became the time. We demonstrate that collisions of a quantum system with the perturbation potential can be arranged along a circular scale of time whose properties provide us precisely with the energy terms obtained by the Schr&ouml;dinger perturbation theory. This validity of results is checked till the perturbation order N = 7. 展开更多
关键词 scale of Time schrödinger’s Perturbation Theory Non-Degenerate Quantum state
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G-Function Solutions for Schrodinger Equation in Cylindrical Coordinates System
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作者 Amir Pishkoo Maslina Darus 《Applied Mathematics》 2014年第3期342-346,共5页
In this paper, the Schr?dinger equation is solved by Modified separation of variables (MSV) method suggested by Pishkoo and Darus. Using this method, Meijer’s G-function solutions are derived in cylindrical coordinat... In this paper, the Schr?dinger equation is solved by Modified separation of variables (MSV) method suggested by Pishkoo and Darus. Using this method, Meijer’s G-function solutions are derived in cylindrical coordinate system for quantum particle in cylindrical can. All elementary functions and most of the special functions which are the solution of extensive problems in physics and engineering are special cases of Meijer’s G-functions. 展开更多
关键词 Meijer’s G-Function Partial Differential Equation Modified separation of Variables schr?dinger Equation
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Optomechanical Schrödinger cat states in a cavity Bose-Einstein condensate
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作者 Baijun Li Wei Qin +4 位作者 Ya-Feng Jiao Cui-Lu Zhai Xun-Wei Xu Le-Man Kuang Hui Jing 《Fundamental Research》 CAS CSCD 2023年第1期15-20,共6页
Schrödinger cat states,consisting of superpositions of macroscopically distinct states,provide key resources for a large number of emerging quantum technologies in quantum information processing.Here we propose h... Schrödinger cat states,consisting of superpositions of macroscopically distinct states,provide key resources for a large number of emerging quantum technologies in quantum information processing.Here we propose how to generate and manipulate mechanical and optical Schrödinger cat states with distinguishable superposition components by exploiting the unique properties of cavity optomechanical systems based on Bose-Einstein condensate.Specifically,we show that in comparison with its solid-state counterparts,almost a 3 order of magnitude enhancement in the size of the mechanical Schrödinger cat state could be achieved,characterizing a much smaller overlap between its two superposed coherent-state components.By exploiting this generated cat state,we further show how to engineer the quadrature squeezing of the mechanical mode.Besides,we also provide an efficient method to create multicomponent optical Schrödinger cat states in our proposed scheme.Our work opens up a new way to achieve nonclassical states of massive objects,facilitating the development of fault-tolerant quantum processors and sensors. 展开更多
关键词 schrödinger cat state Cavity Optomechanics Bose-Einstein condensate Collective density excitation sQUEEZING
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Tiêu Equation Experimentation of Understanding by Energy Transfer Quantum Mechanics
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作者 Huu S. Tieu Martin F. Loeffler 《Natural Science》 CAS 2023年第3期91-102,共12页
Background: The Tiêu equation has a ground roots approach to the process of Quantum Biology and goes deeper through the incorporation of Quantum Mechanics. The process can be measured in plant, animal, and human ... Background: The Tiêu equation has a ground roots approach to the process of Quantum Biology and goes deeper through the incorporation of Quantum Mechanics. The process can be measured in plant, animal, and human usage through a variety of experimental or testing forms. Animal studies were conducted for which, in the first day of the study all the animals consistently gained dramatic weight, even as a toxic substance was introduced as described in the introduction of the paper to harm animal subjects which induced weight loss through toxicity. Tests can be made by incorporating blood report results. Human patients were also observed to show improvement to their health as administration of the substance was introduced to the biological mechanism and plants were initially exposed to the substance to observe results. This is consistent with the Tiêu equation which provides that wave function is created as the introduction of the substance to the biological mechanism which supports Quantum Mechanics. The Tiêu equation demonstrates that Quantum Mechanics moves a particle by temperature producing energy thru the blood-brain barrier for example. Methods: The methods for the Tiêu equation incorporate animal studies to include the substance administered through laboratory standards using Good Laboratory Practices under Title 40 C.F.R. § 158. Human patients were treated with the substance by medical professionals who are experts in their field and have knowledge to the response of patients. Plant applications were acquired for observation and guidance of ongoing experiments of animals’ representative for the biologics mechanism. Results: The animal studies along with patient blood testing results have been an impressive line that has followed the Tiêu equation to consistently show improvement in the introduction of the innovation to biologic mechanisms. The mechanism responds to the substance by producing energy to the mechanism with efficient effect. For plant observations, plant organisms responded, and were seen as showing improvement thru visual observation. 展开更多
关键词 Tiêu Equation Experimentation of Understanding by Energy Transfer Quantum Mechanics Golden sunrise Nutraceutical Huu s. TIȆu schrödinger Equation Quantum Mechanics Life Is Quantum Biology
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MSCS光场广义非线性不等幂次差压缩特性研究 被引量:7
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作者 王菊霞 杨志勇 +2 位作者 苗润才 张勤恳 张黄莉 《陕西师范大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第3期51-56,共6页
利用多模辐射场的广义非线性不等幂次差压缩的一般理论 ,研究了具有普遍意义的两态叠加多模薛定谔猫态 (MSCS)光场的广义非线性不等幂次差压缩特性 (即Nj 次方X压缩特性 ) .通过计算 ,求得了MSCS的Nj 次方X压缩的一般理论结果 ,为寻找... 利用多模辐射场的广义非线性不等幂次差压缩的一般理论 ,研究了具有普遍意义的两态叠加多模薛定谔猫态 (MSCS)光场的广义非线性不等幂次差压缩特性 (即Nj 次方X压缩特性 ) .通过计算 ,求得了MSCS的Nj 次方X压缩的一般理论结果 ,为寻找压缩条件提供了理论依据 . 展开更多
关键词 MsCs光场 多模薛定谔猫态光场 广义非线性不等幂次差压缩 Nj次方X压缩 量子态 量子光学
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利用Raman相互作用制备双模SU(2)薛定谔猫态 被引量:1
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作者 陈昌永 《量子光学学报》 CSCD 2003年第2期55-58,共4页
首先将腔场制备成双模SU(2 )态 ,然后不断注入与腔场发生Raman相互作用的V型三能级原子 ,通过原子—腔场相互作用生成腔场—原子纠缠 ,依次通过对原子进行选择性测量 ,利用波包塌缩原理 ,即可获得双模SU(2 )场纠缠态。
关键词 RAMAN相互作用 薛定谔猫态 V型三能级原子 原子-腔场相互作用 波包塌缩原理 双模sU(2)场纠缠态 双模sU(2)相干态 量子光学 双模光场
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Hirota双线性导数变换与DNLS方程的孤子解 被引量:3
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作者 周国全 《物理通报》 2014年第4期93-97,共5页
介绍并基于Hirota双线性导数变换,零边值条件下DNLS方程得以直接求解.其单孤子与双孤子解被作为两个典型特例以说明双线性导数变换法的一般应用手续.孤子之间的弹性碰撞通过双孤子情形得以展示,单孤子和双孤子解随时间与空间的演化... 介绍并基于Hirota双线性导数变换,零边值条件下DNLS方程得以直接求解.其单孤子与双孤子解被作为两个典型特例以说明双线性导数变换法的一般应用手续.孤子之间的弹性碰撞通过双孤子情形得以展示,单孤子和双孤子解随时间与空间的演化也通过图表加以演示. 展开更多
关键词 双线性导数变换 孤子 非线性可积方程 导数非线性薛定谔方程 HIROTA方法
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多模SCS光场中广义电场的不等幂次高次和压缩
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作者 万慧军 杨志勇 +3 位作者 胡艳芳 余晓光 张佩瑢 胡晓云 《苏州科技学院学报(自然科学版)》 CAS 2003年第4期21-26,共6页
根据量子力学中态的线性叠加原理,构造了由多模复共轭虚相干态、多模复共轭虚相干态的相反态和多模复共轭相干态的线性叠加所组成的三态叠加多模振幅-相位混合Schrdinger-Cat(即SCS)光场│Ψ3〉q。利用新近建立的多模压缩态理论,对SCS... 根据量子力学中态的线性叠加原理,构造了由多模复共轭虚相干态、多模复共轭虚相干态的相反态和多模复共轭相干态的线性叠加所组成的三态叠加多模振幅-相位混合Schrdinger-Cat(即SCS)光场│Ψ3〉q。利用新近建立的多模压缩态理论,对SCS光场│Ψ3〉q中广义电场分量的不等幂次高次和压缩特性进行了详细研究。结果发现:在各模的压缩次数之和取偶数的条件下,当各模的压缩次数与对应模的初始相位之积的和、态间的初始相位差、以及各多模相干态光场的平均光子数等分别满足一定的取值条件时,此三态叠加多模SCS光场│Ψ3〉q的广义电场分量总可呈现出周期性变化的任意Nj次的广义非线性不等幂次高次和压缩效应。 展开更多
关键词 三态叠加 多模sCs光场 广义电场分量 不等幂次高次 多模压缩态 量子光学 振幅-相位混合薛定谔猫态光场
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两类新型MSCS光场的N_j次不等阶Y压缩
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作者 王菊霞 杨志勇 +1 位作者 申正民 侯洵 《宝鸡文理学院学报(自然科学版)》 CAS 2002年第3期161-164,共4页
首次研究了两类多模薛定谔猫态 ( MSCS)光场 :|Ψ ( 2 )+〉q和 |Ψ ( 2 )- 〉q的不等阶 Nj次方 Y压缩特性。结果揭示了两态之间具有压缩相似及简并的性质 ;在各模压缩阶数 Nj( j =1 ,2 ,3,… ,q)分别取4mj、4mj+ 1、4mj+ 2以及 4mj+ 3( ... 首次研究了两类多模薛定谔猫态 ( MSCS)光场 :|Ψ ( 2 )+〉q和 |Ψ ( 2 )- 〉q的不等阶 Nj次方 Y压缩特性。结果揭示了两态之间具有压缩相似及简并的性质 ;在各模压缩阶数 Nj( j =1 ,2 ,3,… ,q)分别取4mj、4mj+ 1、4mj+ 2以及 4mj+ 3( mj=0 ,1 ,2 ,3,… )的情况下 ,随着各模初始相位的变化 ,加上其它某些量子化或连续性条件 ,两类 MSCS均可呈现出周期性变化的任意不等阶 Nj次方 Y压缩效应。说明态 |Ψ( 2 )+〉q与 |Ψ( 2 )- 〉q是两种典型的多模非经典光场。 展开更多
关键词 MsCs光场 Nj次不等阶Y压缩 多模薛定谔猫态光场 相似压缩 压缩简并 多模非经典光场 量子光学
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关于Jaynes-Cummings模型中薛定谔猫态的确切形式
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作者 黄燕霞 《量子光学学报》 CSCD 1999年第3期129-134,共6页
文章采用密度算符之间的距离论证了 Jaynes Cum m ings模型中薛定谔猫态的确切形式, 对有关文献关于 Jaynes Cum m ings模型中薛定谔猫态的讨论给予了修正。
关键词 J-C模型 薛定谔猫态 密度算符间距离
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