Spin flip probability of electron in a uniform magnetic field

Hammond, Richard T.

doi:10.1063/1.3691937

Cited by 10 publications

(15 citation statements)

References 16 publications

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“…Spin effects for electrons in intense linearly polarized laser fields were studied in [10,11]. Distinct spin dynamics have been found in the relativistic Rabi effect [12] as well as in the relativistic Kapitza-Dirac effect [13,14]; in [15] collapse-and-revival dynamics for the spin evolution of laser-driven electrons were predicted at 10 18 W cm −2 . Also, the dynamics of plasmas can be modified by spin effects [16].…”

Section: Introductionmentioning

confidence: 99%

“…Spin effects for electrons in intense linearly polarized laser fields were studied in [10,11]. Distinct spin dynamics has been found in the relativistic Rabi effect [12] as well as in the relativistic Kapitza-Dirac effect [13,14]; in [15] collapse-and-revival dynamics for the spin evolution of laser-driven electrons was predicted at 10 18 W/cm 2 , and also the dynamics of plasmas can be modified by spin effects [16]. Furthermore, the spin orientation relative to the polarization of the driving laser field affects the ionization rate of highly charged ions [17], correlations between electron spin and photon polarization in bremsstrahlung have been measured [18] and pair-production rates differ for partices with spin one half and spin zero [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Electron-spin dynamics induced by photon spins

et al. 2014

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Strong rotating magnetic fields may cause a precession of the electronʼs spin around the rotation axis of the magnetic field. The superposition of two counterpropagating laser beams with circular polarization and opposite helicity features such a rotating magnetic field component but also carries spin. The laserʼs spin density, which can be expressed in terms of the laserʼs electromagnetic fields and potentials, couples to the electronʼs spin via a relativistic correction to the Pauli equation. We show that the quantum mechanical interaction of the electronʼs spin with the laserʼs rotating magnetic field and with the laserʼs spin density counteract each other in such a way that a net spin rotation remains with a precession frequency that is much smaller than the frequency one would expect from the rotating magnetic field alone. In particular, the frequency scales differently with the laserʼs electric field strength depending on whether relativistic corrections are taken into account or not. Thus, the relativistic coupling of the electronʼs spin to the laserʼs spin density changes the dynamics not only quantitatively but also qualitatively as compared to the nonrelativistic theory. The electronʼs spin dynamics are a genuine quantum mechanical relativistic effect.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electron-spin dynamics induced by photon spins

et al. 2014

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“…The main target of many articles is to find the way of generation and detection of a torsion wave. It is supposed that the torsion wave can be created by coherent spin flipping a large number of particles with intrinsic spin [23]. The possibility of the helicity flip for the solar neutrino, induced by torsion was predicted in Ref [15].…”

Section: The Experimental Investigations Of the Torsion Fieldmentioning

confidence: 99%

“…The equation of motion (22) predicts the existence of spiral or circular trajectories of neutral particles in external torsion fields. It is important that torsion fields attract increasing interest [19] - [23]. The main interest lies in the direction of possibility of the experimental observation of the splitting of the known spectral lines [20], using the spectral analysis experiments.…”

Section: The Experimental Investigations Of the Torsion Fieldmentioning

confidence: 99%

The geometro-hydrodynamical representation of the torsion field

Trukhanova

2017

Physics Letters A

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We construct the geometro-hydrodynamical formalism for a spinning particle based on the six-dimensional manifold of autoparallelism geometry which is represented as a vector bundle with a base formed by the manifold of the translational coordinates and a fibre specified at each point by the field of an orthogonal coordinate frame underlying the classical spin. We show that the geometry of oriented points leads to the existence of torsion field with the source -the classical spin. We expand the geometro-hydrodynamical representation of Pauli field developed by Takabayasi and Vigier. We show that the external torsion field has a force effect on the velocity and spin fields via the spin-vorticity, which is characteristic of the space structure with the inhomogene triad field. The possible experimental effects of torsion field are discussed.

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“…Most of them are accumulated in a grate field of physics: spintronics [2], [3]. There are different methods of the spin-current generation, such as spin pumping by sound waves [4], optical spin injection [5], and at using of junctions as Polarizers [6], spin flip in the result of electron interaction with electromagnetic wave [7]. Spin-polarized currents are used in spin lasers development [8] and in spin-diode structures [9].…”

Section: Introductionmentioning

confidence: 99%

Waves of spin current in magnetized dielectrics

Andreev

Kuz'menkov

2015

Int. J. Mod. Phys. B

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Spin-current is an important physical quantity in present day spintronics and it might be very usefull in the physics of quantum plasma of spinning particles. Thus it is important to have an equation of the spin-current evolution. This equation naturally appears as a part of a set of the quantum hydrodynamics (QHD) equations. Consequently, we present the set of the QHD equations derived from the many-particle microscopic Schrodinger equation, which consists of the continuity equation, the Euler equation, the Bloch equation and equation of the spin-current evolution. We use these equations to study dispersion of the collective excitations in the three dimensional samples of the magnetized dielectrics. We show that dynamics of the spin-current leads to formation of new type of the collective excitations in the magnetized dielectrics, which we called spin-current waves.

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Spin flip probability of electron in a uniform magnetic field

Cited by 10 publications

References 16 publications

Electron-spin dynamics induced by photon spins

Electron-spin dynamics induced by photon spins

The geometro-hydrodynamical representation of the torsion field

Waves of spin current in magnetized dielectrics

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