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De Broglie’s Velocity of Transition between Quantum Levels and the Quantum of the Magnetic Spin Moment Obtained from the Uncertainty Principle for Energy and Time
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作者 Stanislaw Olszewski 《Journal of Modern Physics》 2014年第18期2022-2029,共8页
The De Broglie’s approach to the quantum theory, when combined with the conservation rule of momentum, allows one to calculate the velocity of the electron transition from a quantum state n to its neighbouring state ... The De Broglie’s approach to the quantum theory, when combined with the conservation rule of momentum, allows one to calculate the velocity of the electron transition from a quantum state n to its neighbouring state as a function of n. The paper shows, for the case of the harmonic oscillator taken as an example, that the De Broglie’s dependence of the transition velocity on n is equal to the n-dependence of that velocity calculated with the aid of the uncertainty principle for the energy and time. In the next step the minimal distance parameter provided by the uncertainty principle is applied in calculating the magnetic moment of the electron which effectuates its orbital motion in the magnetic field. This application gives readily the electron spin magnetic moment as well as the quantum of the magnetic flux known in superconductors as its result. 展开更多
关键词 velocity of the Electron Transitions between Quantum Levels De Broglie wave Packets Magnetic Moment of the Electron spin Quantum of the Magnetic Flux The Uncertainty Principle for Energy and Time
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Relativistic Dynamics, Electromagnetic Field,and Spin, as All Quantum Effects
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作者 Eliade Stefanescu 《Journal of Electronic Science and Technology》 CAS CSCD 2017年第4期333-341,共9页
We consider a quantum particle as a wave packet in the coordinate space. When the conjugate wave packet in the momentum space is considered, we find that the group velocities of these two wave packets, which describe ... We consider a quantum particle as a wave packet in the coordinate space. When the conjugate wave packet in the momentum space is considered, we find that the group velocities of these two wave packets, which describe the particle dynamics, are in agreement with the Hamilton equations only if in the time dependent phases one considers the Lagrangian instead of the Hamiltonian which leads to the conventional Schr?dinger equation. We define a relativistic quantum principle asserting that a quantum particle has a finite frequency spectrum, with a cutoff propagation velocity c as a universal constant not depending on the coordinate system, and that any time dependent phase variation is the same in any system of coordinates. From the time dependent phase invariance,the relativistic kinematics is obtained. We consider two types of possible interactions: 1) An interaction with an external field, by a modification of the time dependent phase differential with the terms proportional to the differentials of the space-time coordinates multiplied with the components of this field four-potential, and 2)an interaction by a deformation of the space-time coordinates, due to a gravitational field. From the invariance of the time dependent phase with field components, we obtain a mechanical force of the form of Lorentz’s force, and three Maxwell equations: The Gauss-Maxwell equations for the electric and magnetic fluxes, and the Faraday-Maxwell equation for the electromagnetic induction. When the fourth equation,Ampère-Maxwell, is considered, the interaction field takes the form of the electromagnetic field. For a low propagation velocity of the particle waves, we get a packet of waves with the time dependent phases proportional to the relativistic Hamiltonian, as in Dirac’s famous theory of spin, and a slowly-varying amplitude with a phase proportional to the momentum and this velocity. In the framework of our theory, the spin is obtained as an all quantum effect, without any additional assumption to the quantum theory. When a space-time deformation is considered in the time dependent phase of a quantum particle, from the group velocity we get the particle dynamics according to the general theory of relativity. In this way, the relativistic dynamics, the electromagnetic field, and the spin of a quantum particle are obtained only from the invariance of the time dependent phases of the particle wave functions. 展开更多
关键词 Group velocity Maxwell equations metric tensor quantum particle spin wave packet
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微波综合实验仪的设计 被引量:2
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作者 王俊华 沙春芳 +1 位作者 单国威 单金丽 《实验室研究与探索》 CAS 北大核心 2011年第10期32-34,共3页
设计了一种微波综合性学生实验仪器,能进行电子自旋共振、微波特性研究和光速的精确测量。设备由微波振荡源、晶体检波器、微波频率计、驻波测量线、示波器、全反射铜板、多孔径铜质反射器等元器件组成,介绍了微波电子综合实验仪的工作... 设计了一种微波综合性学生实验仪器,能进行电子自旋共振、微波特性研究和光速的精确测量。设备由微波振荡源、晶体检波器、微波频率计、驻波测量线、示波器、全反射铜板、多孔径铜质反射器等元器件组成,介绍了微波电子综合实验仪的工作原理及制作方法。该设计节约了资源,提高了仪器的利用效率,在近代物理实验应用中有着良好的发展前景。 展开更多
关键词 微波 自旋共振 光速测量 驻波比 G因子
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磁场作用下的磁性流体行波泵研究
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作者 赵猛 胡建辉 +2 位作者 徐永向 邹继斌 王黎钦 《大连大学学报》 2008年第3期108-111,共4页
磁场作用下的磁性流体行波泵研究是行波泵设计的基础。通过分析了行波磁场作用下的磁性流体的运动方程,从而进一步推导了行波磁场作用下的磁性流体的速度方程、旋转速度方程和单位时间内的流量方程,并通过实验进行了验证。研究表明:行... 磁场作用下的磁性流体行波泵研究是行波泵设计的基础。通过分析了行波磁场作用下的磁性流体的运动方程,从而进一步推导了行波磁场作用下的磁性流体的速度方程、旋转速度方程和单位时间内的流量方程,并通过实验进行了验证。研究表明:行波磁场作用下的磁性流体会产生流动现象;行波磁场作用下的磁性流体流量与磁极旋转的角度有直接关系,磁极旋转的角度越大,其流量也越多;行波磁场的强弱对磁性流体流量也会产生影响,磁场越强,其流量越大;行波磁场的频率只能影响磁性流体的流速,对流量不产生任何直接影响。 展开更多
关键词 磁性流体 行波磁场 速度 旋转速度
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海森堡Ladder模型中自旋波速度的理论研究
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作者 许寅杰 陈宇光 《南昌航空大学学报(自然科学版)》 CAS 2012年第4期19-25,共7页
通过测量海森堡Ladder模型中不同链间相互作用Jv下的系统自旋波速度vs,并为此建立了海森堡Ladder模型,同时引入了弹性系数为K的链内弹性晶格,使Ladder模型形成了自发的柱状二聚化。在不同的Jv下,利用密度矩阵重整化群(DMRG)以及自洽方法... 通过测量海森堡Ladder模型中不同链间相互作用Jv下的系统自旋波速度vs,并为此建立了海森堡Ladder模型,同时引入了弹性系数为K的链内弹性晶格,使Ladder模型形成了自发的柱状二聚化。在不同的Jv下,利用密度矩阵重整化群(DMRG)以及自洽方法,测量了不同尺寸系统其各自对应的单态与三重态之间的能隙G以及孤子宽度Ws,并将结果外推至热力学极限。通过对Ws-1/G斜率的测量,得到不同Jv下所对应的系统波速度vs。测量结果表明,伴随着G随Jv的增强而线性减弱的同时,Ws随着Jv的增强而非线性地快速增加,这使得vs发生了一个先减小后增大至无穷的连续变化,且随着K的增强这种变化愈发剧烈。这说明Jv对系统磁振子的扩散起到了抑制或促进作用。 展开更多
关键词 强关联 Ladder模型 密度矩阵重整化群 自旋波速度
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电子的内禀运动及其对真空的影响
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作者 皮光远 《北京机械工业学院学报》 1995年第1期83-90,共8页
本文从狄拉克的电子理论及现代物理学关于真空的概念出发,分析了电子的内禀运动对真空的作用和影响,初步揭示了德布罗意波及波粒二象性,静电场及库仑定律,磁场及毕奥—萨伐尔定律的实质。
关键词 真空 电子 内禀运动
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