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复四维空间中的对偶张量 被引量:1
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作者 刘晓慈 《大学物理》 1998年第10期17-18,共2页
引进复四维空间中的对偶张量,并将其用于电磁场方程的协变性表述.
关键词 对偶 协变性 电磁场方程 复四维空间
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电磁场的复张量表述 被引量:1
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作者 沈建其 《大学物理》 北大核心 2009年第5期6-8,共3页
在电磁场的三维复矢量表述基础之上获得对应的四维复张量表述形式,同时又考虑磁荷流密度并引入双势法,将电磁场复张量表述推广到同时包含电荷与磁荷流密度的情形并获得了复张量麦克斯韦方程组.
关键词 三维复矢 四维复张 对偶 磁荷 双势法
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平面线性电路的对偶性
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作者 赵庆利 《唐山学院学报》 2002年第2期83-85,共3页
讨论平面线性电路的对偶性 。
关键词 对偶量 对偶电路 关联矩阵 拓扑图
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电学中对偶性认识及应用初探
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作者 吕桃 《科学大众(智慧教育)》 2017年第10期99-99,103,共2页
通过对偶性的含义理解,结合直流电路中串、并联电路对偶性分析,探讨电学部分成对电路、定律公式及方法的内在联系与区别,阐述利用这一特性解决相关公式推导及验证方法,达到提高通过类比加强记忆及记忆正确性鉴别能力的目的。
关键词 对偶 对偶关系 对偶量 成对
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阿哈罗诺夫-卡谢效应 被引量:1
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作者 陆继宗 《自然杂志》 1991年第4期253-258,共6页
本世纪初相对论和量子力学的问世,引起了物理学的一场翻天覆地的大革命。从原则上讲,经典电磁理论是不受这场革命影响的唯一的一门物理理论。但它与量子力学也有一点小小的不一致,这就是所谓A、B之争,即磁势A和磁场B到底哪一个更为本质... 本世纪初相对论和量子力学的问世,引起了物理学的一场翻天覆地的大革命。从原则上讲,经典电磁理论是不受这场革命影响的唯一的一门物理理论。但它与量子力学也有一点小小的不一致,这就是所谓A、B之争,即磁势A和磁场B到底哪一个更为本质。这样就促使物理学家提出井用实验验证了阿哈罗诺夫-玻姆效应(AB效应)及其电磁对偶阿哈罗诺夫-卡谢效应(AC效应)。 展开更多
关键词 阿哈 罗诺 经典电磁理论 物理理论 磁势 对偶 电磁现象 闭合曲线 洛伦兹力 大学物理
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Duality Computing in Quantum Computers 被引量:9
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作者 LONG Gui-Lu LIU Yang 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第12期1303-1306,共4页
In this letter,we propose a duality computing mode,which resembles particle-wave duality property whena quantum system such as a quantum computer passes through a double-slit.In this mode,computing operations arenot n... In this letter,we propose a duality computing mode,which resembles particle-wave duality property whena quantum system such as a quantum computer passes through a double-slit.In this mode,computing operations arenot necessarily unitary.The duality mode provides a natural link between classical computing and quantum computing.In addition,the duality mode provides a new tool for quantum algorithm design. 展开更多
关键词 duality computer duality quantum computer duality computing mode
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General Quantum Interference Principle and Duality Computer 被引量:33
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作者 LONG Gui-Lu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第5期825-844,共20页
In this article, we propose a general principle of quantum interference for quantum system, and based on this we propose a new type of computing machine, the duality computer, that may outperform in principle both cla... In this article, we propose a general principle of quantum interference for quantum system, and based on this we propose a new type of computing machine, the duality computer, that may outperform in principle both classical computer and the quantum computer. According to the general principle of quantum interference, the very essence of quantum interference is the interference of the sub-waves of the quantum system itself A quantum system considered here can be any quantum system: a single microscopic particle, a composite quantum system such as an atom or a molecule, or a loose collection of a few quantum objects such as two independent photons. In the duality computer, the wave of the duality computer is split into several sub-waves and they pass through different routes, where different computing gate operations are performed. These sub-waves are then re-combined to interfere to give the computational results. The quantum computer, however, has only used the particle nature of quantum object. In a duality computer, it may be possible to find a marked item from an unsorted database using only a single query, and all NP-complete problems may have polynomial algorithms. Two proof-of-the-principle designs of the duality computer are presented: the giant molecule scheme and the nonlinear quantum optics scheme. We also propose thought experiment to check the related fundamental issues, the measurement efficiency of a partial wave function. 展开更多
关键词 quantum interference duality computer NP-complete = P
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Allowable Generalized Quantum Gates 被引量:10
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作者 LONG Gui-Lu LIU Yang WANG Chuan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第1期65-67,共3页
In this paper, we give the most general duality gates, or generalized quantum gates in duality quantum computers. Here we show by explicit construction that a n-bit duality quantum computer with d slits can be simulat... In this paper, we give the most general duality gates, or generalized quantum gates in duality quantum computers. Here we show by explicit construction that a n-bit duality quantum computer with d slits can be simulated perfectly with an ordinary quantum computer with n qubits and one auxiliary qudit. Using this model, we give the most general form of duality gates which is of the form ∑i=0^d-1piUi,and the pi 's are complex numbers with module less or equal to 1 and constrained by|∑iPi|≤1. 展开更多
关键词 duality computer duality quantum computer duality computing mode
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广义Helmholtz定理的四维势表述及其在同时含有电荷磁、荷的电磁场中的应用
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作者 钟克武 胡业腾 《九江学院学报(社会科学版)》 1985年第Z2期55-61,共7页
本文首先介绍三维欧几里德空间中矢量场的亥姆霍兹定理及在静电场和稳恒电流磁场等特殊情形下的简要验证,接着由此自然地推广到四维空时下反对称二阶电磁场张量F^(μγ)的广义亥姆霍兹定理,即由二阶反对称张量的四散度_μF^(μγ)及对... 本文首先介绍三维欧几里德空间中矢量场的亥姆霍兹定理及在静电场和稳恒电流磁场等特殊情形下的简要验证,接着由此自然地推广到四维空时下反对称二阶电磁场张量F^(μγ)的广义亥姆霍兹定理,即由二阶反对称张量的四散度_μF^(μγ)及对偶四散度_μ~*F(μγ)确定此二阶张量。其次本文对同时含有电荷、电磁的电磁场引入电流密度四矢J_e~μ和磁流密度四矢J_m~μ,从而着重由上述二阶张量的四散度和对偶四散度表述下的广义亥姆霍兹定理导出在电(磁)场四维矢势的四散度及对偶四散度表述下的广义亥姆霍兹定理。最后介绍此定理在二阶反对称电磁张量场中的应用,导出广义麦克斯韦方程及电荷、磁荷守恒定律的相对论协变形式。 展开更多
关键词 亥姆霍兹定理 HELMHOLTZ 稳恒电流 电磁场张 静电场 反对称 麦克斯韦方程 欧几里德空间 电磁场理论 对偶
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Sweedler's dual of Hopf algebras in HHYDQCM
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作者 Zhang Tao Wang Shuanhong 《Journal of Southeast University(English Edition)》 EI CAS 2020年第3期364-366,共3页
Firstly,the notion of the left-left Yetter-Drinfeld quasicomodule M=(M,·,ρ)over a Hopf coquasigroup H is given,which generalizes the left-left Yetter-Drinfeld module over Hopf algebras.Secondly,the braided monoi... Firstly,the notion of the left-left Yetter-Drinfeld quasicomodule M=(M,·,ρ)over a Hopf coquasigroup H is given,which generalizes the left-left Yetter-Drinfeld module over Hopf algebras.Secondly,the braided monoidal category HHYDQCM is introduced and the specific structure maps are given.Thirdly,Sweedler's dual of infinite-dimensional Hopf algebras in HHYDQCM is discussed.It proves that if(B,mB,μB,ΔB,εB)is a Hopf algebra in HHYDQCM with antipode SB,then(B^0,(mB0)^op,εB^*,(ΔB0)^op,μB^*)is a Hopf algebra in HHYDQCM with antipode SB^*,which generalizes the corresponding results over Hopf algebras. 展开更多
关键词 Hopf(co)quasigroup Yetter-Drinfeld quasi(co)module braided monoidal category DUALITY
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Multisymplectic Geometry for the Seismic Wave Equation 被引量:1
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作者 CHENJing-Bo 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第4期561-566,共6页
The multisymplectic geometry for the seismic wave equation is presented in this paper.The local energy conservation law,the local momentum evolution equations,and the multisymplectic form are derived directly from the... The multisymplectic geometry for the seismic wave equation is presented in this paper.The local energy conservation law,the local momentum evolution equations,and the multisymplectic form are derived directly from the variational principle.Based on the covariant Legendre transform,the multisymplectic Hamiltonian formulation is developed.Multisymplectic discretization and numerical experiments are also explored. 展开更多
关键词 multisymplectic geometry multisymplectic formulation seismic wave equation
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[[2n ,n]] ADDITIVE QUANTUM ERROR CORRECTING CODES
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作者 Du Yongjun Ma Yuefei 《Journal of Electronics(China)》 2008年第4期519-522,共4页
The self-orthogonal condition is analyzed with respect to symplectic inner product for the binary code that generated by [B1 I B2 B3],where Bi are the binary n ×n matrices,I is an identity matrix.By the use of th... The self-orthogonal condition is analyzed with respect to symplectic inner product for the binary code that generated by [B1 I B2 B3],where Bi are the binary n ×n matrices,I is an identity matrix.By the use of the binary codes that generated by [B1 I B2 B2B1^T],asymptotic good[[2n ,n ]]additive quantum codes are obtained. 展开更多
关键词 Additive quantum codes Binary codes Symplectic inner product Asymptotic good codes
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Generation of Nonlinear Evolution Equations by Reductions of the Self-Dual Yang–Mills Equations 被引量:4
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作者 张玉峰 Hon-Wah Tam 《Communications in Theoretical Physics》 SCIE CAS CSCD 2014年第2期203-206,共4页
With the help of some reductions of the self-dual Yang Mills(briefly written as sdYM) equations, we introduce a Lax pair whose compatibility condition leads to a set of(2 + 1)-dimensional equations. Its first reductio... With the help of some reductions of the self-dual Yang Mills(briefly written as sdYM) equations, we introduce a Lax pair whose compatibility condition leads to a set of(2 + 1)-dimensional equations. Its first reduction gives rise to a generalized variable-coefficient Burgers equation with a forced term. Furthermore, the Burgers equation again reduces to a forced Burgers equation with constant coefficients, the standard Burgers equation, the heat equation,the Fisher equation, and the Huxley equation, respectively. The second reduction generates a few new(2 + 1)-dimensional nonlinear integrable systems, in particular, obtains a kind of(2 + 1)-dimensional integrable couplings of a new(2 + 1)-dimensional integrable nonlinear equation. 展开更多
关键词 self-dual Yang-Mills equation Lax pair (2+ 1)-dimensional integrable system integrable coupling
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Dual mean Minkowski measures of symmetry for convex bodies 被引量:4
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作者 GUO Qi TOTH Gabor 《Science China Mathematics》 SCIE CSCD 2016年第7期1383-1394,共12页
We introduce and study a sequence of geometric invariants for convex bodies in finite-dimensional spaces, which is in a sense dual to the sequence of mean Minkowski measures of symmetry proposed by the second author. ... We introduce and study a sequence of geometric invariants for convex bodies in finite-dimensional spaces, which is in a sense dual to the sequence of mean Minkowski measures of symmetry proposed by the second author. It turns out that the sequence introduced in this paper shares many nice properties with the sequence of mean Minkowski measures, such as the sub-arithmeticity and the upper-additivity. More meaningfully, it is shown that this new sequence of geometric invariants, in contrast to the sequence of mean Minkowski measures which provides information on the shapes of lower dimensional sections of a convex body, provides information on the shapes of orthogonal projections of a convex body. The relations of these new invariants to the well-known Minkowski measure of asymmetry and their further applications are discussed as well. 展开更多
关键词 geometric invariant measure of symmetry dual measure of symmetry simplex affine diameter
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Macwilliams Identities of Linear Codes over the Ring F_2+ uF_2+ vF_2
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作者 LIU Xiusheng LIU Hualu 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2015年第3期691-701,共11页
The Lee weight enumerators and the complete weight enumerators for the linear codes over ring R = F2 + u F2 + v F2 are defined and Gray map from R^nto F2^3n is constructed. By proving the fact that the Gray images o... The Lee weight enumerators and the complete weight enumerators for the linear codes over ring R = F2 + u F2 + v F2 are defined and Gray map from R^nto F2^3n is constructed. By proving the fact that the Gray images of the self-dual codes over R are the self-dual codes over F2, and based on the Mac Williams identities for the Hamming weight enumerators of linear codes over F2, the Mac Williams identities for Lee weight enumerators of linear codes over R are given. Further, by introducing a special variable t, the Mac Williams identities for the complete weight enumerators of linear codes over R are obtained. Finally, an example which illustrates the correctness and function of the two Mac Williams identities is provided. 展开更多
关键词 Complete weight enumerators dual codes gray map Lee weight enumerators linear codes Macwilliams identities.
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(n+1)-Dimensional Gravity Duals to Quantum Criticalities with Spontaneous Symmetry Breaking
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作者 曾定方 赵凯 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第10期458-464,共7页
We reexamine the charged AdS domain wall solution to the Einstein-Abelian-Higgs model proposed by Gubser et al. as holographic superconductors at quantum critical points and comment on their statement about the unique... We reexamine the charged AdS domain wall solution to the Einstein-Abelian-Higgs model proposed by Gubser et al. as holographic superconductors at quantum critical points and comment on their statement about the uniqueness of gravity solutions. We generalize their explorations from (3 + 1)-dimensions to arbitrary n -b 1Ds and find that the n +1≥5D charged AdS domain walls are unstable against electric perturbations. 展开更多
关键词 quantum critical superconductors holographic dualities Einstein-Abelian-Higgs model
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String Cosmological Solutions with O(d,d) Duality Symmetry and Matter Coupling
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作者 李宝霖 颜骏 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第1期43-46,共4页
The duality properties of string cosmology model with negative energy matter are investigated by means of renormalization group equation,the cosmological solutions with exotic matter coupling are obtained in D=d+1 dim... The duality properties of string cosmology model with negative energy matter are investigated by means of renormalization group equation,the cosmological solutions with exotic matter coupling are obtained in D=d+1 dimensional space-time.These inflation-power solutions can describe accelerated and decelerated process in the early universe,and the duality solutions can be generated through O(d,d) transformations. 展开更多
关键词 O(d d) duality symmetry cosmological solutions matter coupling renormalization group equa-tion
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