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In particle physics, most of the classical models consider that the centre of mass and centre of charge of an elementary particle, are the same point. This presumes some particular relationship between the charge and mass distribution, a…

General Physics · Physics 2015-05-13 Martin Rivas

We consider the positions and velocities of electrons and spinning nuclei and demonstrate that these particles harbour hidden momentum when located in an electromagnetic field. This hidden momentum is present in all atoms and molecules,…

Atomic and Molecular Clusters · Physics 2018-05-09 Robert P. Cameron , J. P. Cotter

The classical laws of physics are usually invariant under time reversal. Here, we reveal a novel class of magnetomechanical effects rigorously breaking time-reversal symmetry. The effect is based on the mechanical rotation of a hard magnet…

Mesoscale and Nanoscale Physics · Physics 2022-02-08 Elena Y. Vedmedenko , Roland Wiesendanger

Semiclassical oscillation of the electron through the nucleus of the H atom yields both the exact energy and the correct orbital angular momentum for l=0 quantum states. Similarly, electron oscillation through the nuclei of H2+ accounts for…

History and Philosophy of Physics · Physics 2007-05-23 Manfred Bucher

We suggest a new spin orientation mechanism for localized electrons: $dynamic~electron~spin~polarization~provided~by~nuclear~spin~fluctuations$. The angular momentum for the electrons is gained from the nuclear spin system via the hyperfine…

Mesoscale and Nanoscale Physics · Physics 2020-10-14 D. S. Smirnov , T. S. Shamirzaev , D. R. Yakovlev , M. Bayer

In a tokamak, trapped electrons subject to a strong electric field cannot run away immediately, because their parallel velocity does not increase over a bounce period. However, they do pinch towards the tokamak center. As they pinch towards…

Plasma Physics · Physics 2015-06-24 E. Nilsson , J. Decker , N. J. Fisch , Y. Peysson

In solid state physics, any phase transition is commonly observed as a change in the microscopic distribution of charge, spin, or current. Here we report the nature of an exotic order parameter inherent in the localized electron orbitals…

Strongly Correlated Electrons · Physics 2023-07-03 Shintaro Hoshino , Michi-To Suzuki , Hiroaki Ikeda

A curved two dimensional electron gas with spin-orbit interactions due to the radial confinement asymmetry is considered. At certain relation between the spin-orbit coupling strength and curvature radius the tangential component of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Maxim Trushin , John Schliemann

Relaxation of electronic spins in metals is significantly enhanced whenever a Fermi surface crosses Brillouin zone boundaries, special symmetry points, or lines of accidental degeneracy. A realistic calculation shows that if aluminum had…

Condensed Matter · Physics 2009-10-31 J. Fabian , S. Das Sarma

The Stern-Gerlach (SG) experiment is a fundamental experiment for revealing the existence of ``spin''. In such an experiment, beams of silver atoms were sent through inhomogeneous magnetic fields to observe their deflection. Thus, the…

Quantum Physics · Physics 2025-03-28 Jiang-Lin Zhou , Zou-Chen Fu , Choo Hiap Oh , Jing-Ling Chen

We discuss the electron spin resonance in two-dimensional electron gas at zero external magnetic field. This spin-resonance is due to the transitions between the electron states, which are split by the spin-orbit (SO) interaction, and is…

Strongly Correlated Electrons · Physics 2007-05-23 A. Shekhter , M. Khodas , A. M. Finkel'stein

We describe a mechanism of spin transfer between individual quantum dots that does not require tunneling. Incident circularly-polarized photons create inter-band excitons with non-zero electron spin in the first quantum dot. When the…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 A. O. Govorov

We give a systematic treatment of a spin 1/2 particle in a combined electromagnetic field and a weak gravitational field that is produced by a slowly moving matter source. This paper continues previous work on a spin zero particle, but it…

General Relativity and Quantum Cosmology · Physics 2013-05-30 Ronald J. Adler , Pisin Chen , Elisa Varani

Prospect of building electronic devices in which electron spins store and transport information has revived interest in the spin relaxation of conduction electrons. Since spin-polarized currents cannot flow indefinitely, basic…

Condensed Matter · Physics 2009-10-31 Jaroslav Fabian , S. Das Sarma

The spectral distribution of spontaneous emission of electrons moving in a plane wiggler with inhomogeneous magnetic field is calculated. We show that electrons do complicated motion consisting of slow(strophotron) and fast(undulator)…

Accelerator Physics · Physics 2020-03-23 E. A. Ayryan , A. H. Gevorgyan , M. Hnatic , N. Sh. Izmailian , V. V. Papoyan , K. B. Oganesyan

In a solid, transport of electricity can occur via electrons or via holes. In the normal state no experiment can determine unambiguously whether the elementary mobile carriers have positive or negative charge. This is no longer true in the…

Superconductivity · Physics 2009-11-07 J. E. Hirsch

The classical two-dimensional problem of non-interacting electrons scattered by short-range impurity centers in the presence of magnetic field is investigated both analytically and numerically. A strong magnetoresistance exists in such a…

Statistical Mechanics · Physics 2009-11-07 A. Dmitriev , M. Dyakonov , R. Jullien

In case of spinless particles there appear additional (singular) solutions in the framework of relativistic Klein-Gordon equation for Coulomb potential. These solutions obey to all requirements of quantum mechanical general principles.…

General Physics · Physics 2016-01-13 Anzor Khelashvili , Teimuraz Nadareishvili

In this paper, we have given the symmetrical and antisymmetrical spin and space wave functions of three-electron, and further given the full total entanglement states for the three-electron, which are related to their space and spin wave…

The rapidly rising fields of spintronics and quantum information science have led to a strong interest in developing the ability to coherently manipulate electron spins. Electron spin resonance (ESR) is a powerful technique to manipulate…

Materials Science · Physics 2009-11-13 M. Pioro-Ladriere , T. Obata , Y. Tokura , Y. -S. Shin , T. Kubo , K. Yoshida , T. Taniyama , S. Tarucha
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