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Gravity-induced geometric spin Hall effect of freely falling quantum particle

Communications in Theoretical Physics 2022年第10期74卷 76-82页

作者： Zhen-Lai Wang Xiang-Song Chen School of Mathematics and Physics Hubei Polytechnic UniversityHuangshi 435003China School of Physics and MOE Key Laboratory of Fundamental Quantities Measurement Huazhong University of Science and TechnologyWuhan 430074China

We discuss a new gravitational effect that the wave packet of a free-fall quantum particle undergoes a spin-dependent transverse shift in Earth’s gravitational *** effect is similar to the geometric spin Hall effect(GSHE)(Aiello 2009 et al ***.103100401),and can be called gravity-induced *** effect suggests that the free-fall wave packets of opposite spin-polarized quantum particles can be split in the direction perpendicular to spin and gravity.

关键词： gravity-induced geometric spin Hall effect quantum particle universality of free fall

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Fault location of untransposed double-circuit transmission lines based on an improved Karrenbauer matrix and the QPSO algorithm

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Protection and Control of Modern Power Systems 2023年第3期8卷 139-152页

作者： Minan Tang Hang Lu Bin Li School of New Energy and Power Engineering Lanzhou Jiaotong UniversityLanzhouChina School of Electrical and Information Engineering Tianjin UniversityTianjinChina.

Some double-circuit transmission lines are untransposed,which results in complex coupling relations between the parameters of the transmission *** the traditional modal transformation matrix is directly used to decouple the parameters,it can lead to large errors in the decoupled modal parameter,errors which will be amplified in the fault location ***,it makes the fault location results of the untransposed double-circuit transmission lines less ***,a new modal transformation method is needed to decou-ple the parameter matrix of untransposed double-circuit transmission lines and realize the fault location according to the decoupled modal *** improving the basis of the Karrenbauer matrix,a modal transformation matrix suitable for decoupling parameters of untransposed double-circuit transmission lines is *** address the dif-ficulties in solving the fault location equation of untransposed double-circuit transmission lines,a new fault location method based on an improved Karrenbauer matrix and the quantum-behaved particle swarm optimization(QPSO)algorithm is ***,the line parameter matrix is decomposed into identical and inverse sequence compo-nents using the identical-inverse sequence component *** Karrenbauer matrix is then transformed to obtain the improved Karrenbauer matrix for untransposed double-circuit transmission lines and applied to identi-cal and inverse sequence components to solve the decoupled modal ***,based on the principle that voltage magnitudes at both ends are equal,the fault location equation is expressed using sequence compo-nents at each end,and the QPSO algorithm is introduced to solve the ***,the feasibility and accuracy of the proposed method are verified by PSCAD *** simulation results fully demonstrate that the innova-tive improvement on the basis of the traditional modal transformation matrix in this paper can realize the m

关键词： Fault location Untransposed double-circuit transmission lines Karrenbauer matrix quantum particle

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Relativistic Dynamics, Electromagnetic Field,and Spin, as All quantum Effects

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Journal of Electronic Science and Technology 2017年第4期15卷 333-341页

作者： Eliade Stefanescu Center of Advanced Studies in Physics Bucharest 050711 Romania Institute of Mathematics “Simion Stoilow” of the Romanian Academy Bucharest 010702 Romania

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 additio

关键词： Group velocity Maxwell equations metric tensor quantum particle spin wave packet

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About the Nature of the quantum System—An Examination of the Random Discontinuous Motion Interpretation of the quantum Mechanics

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Journal of quantum Information Science 2021年第3期11卷 99-111页

作者： Sofia D. Wechsler Kiryat Motzkin Israel

What is the quantum system? Consider the wave-function of the electron—what we call “single particle wave-function”—and assume that it contains N wave-packets. If we pass all the wave-packets through an electric field, all are deflected, as if each one of them contains an electron. However, if we bring any two wave-packets to travel close to one another, they don’t repel one another, as if at least one of them contains no charge. In trying to solve the measurement problem of the quantum mechanics (QM), different interpretations were proposed, each one coming with a particular ontology. However, only one interpretation paid explicit attention to the contradiction mentioned above. This interpretation was proposed by S. Gao who named it “random discontinuous motion” (RDM), because it assumes the existence of a particle that jumps from place to place at random. The particle carries all the physical properties of the respective type of particle, mass, charge, magnetic momentum, etc. It jumps under the control of an “instantaneous condition” about which Gao did not give details so far. Along with presenting problems of the QM that this interpretation solves, this text reveals difficulties vis-à-vis entanglements and the special relativity.

关键词： quantum Mechanics quantum particle Ontology Self-Interaction Instantaneous Condition

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The Wave Function Cannot Be a Real Wave—Then, Can We Speak of an Ontology of particles?

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Journal of quantum Information Science 2022年第4期12卷 99-110页

作者： Sofia D. Wechsler Independent Researcher Kiryat Motzkin Israel

Is the wave-function a physical reality traveling through our apparatus? Is it a real wave, or it is only a mathematical tool for calculating probabilities of results of measurements? Different interpretations of the quantum mechanics (QM) assume different answers to this question. It is shown in this article that the assumption that the wave-function is a real wave entails a contradiction with the predictions of the QM, when the special relativity is invoked. Therefore, this text concentrates on interpretations that conjecture that the reality that moves in our apparatuses is particles, and they move under the constraints of the wave-function. The de Broglie-Bohm interpretation, which matches this picture, assumes that the particle travels along a continuous trajectory. However, the idea of continuous trajectories was proved to lead to a contradiction with the quantum predictions. Therefore this interpretation is not considered here. S. Gao conjectured that the particle is in a permanent random and discontinuous motion (RDM). As it jumps all the time from place to place, the total set of occupied positions at a certain time is given by the absolute square of the wave-function. As motivation for his idea, Gao argued that if a charged particle were simultaneously in two or more locations at the same time, the copies of the particle would repel one another, destroying the wave-function. It is proved here that the quantum formalism renders this motivation wrong. Although refuting this motivation, the RDM interpretation is examined here. A couple of problems of this interpretation are examined and it is proved that they don’t lead to any observable contradictions with the QM predictions, except one problem which seems to have no solution. In all, it appears that none of the wide-spread interpretations of the QM is free of contradictions.

关键词： quantum Mechanics quantum particle Ontology Self-Interaction Instantaneous Condition Special Relativity

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