Electron scattering by a short-range potential in a constant homogeneous magnetic field

Ternov, I. M.; Багров, В. Г.; Rzaev, R.A.

doi:10.1007/bf00818077

Cited by 3 publications

(6 citation statements)

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“…, the spin contribution to the SR power also exhibits an unusual dependence on the spin direction [4,6]: (10) where [30] (11)…”

Section: Likementioning

confidence: 97%

“…Relations (22) and (23) lead to the equalities (see (A.6) and (A.9); we assume below that = const) (25) 6 Frenkel's original article [31] appearing in 1926 obviously could not contain any mention of the possibility g ≠ 2. At the same time, the equations of the model can easily be generalized to this case (see [22,32] and Appendix A).…”

Section: Equations Of Motion In the Frenkel Model: Basic Approximationsmentioning

confidence: 99%

“…Expressions describing these effects have long been obtained by QED (quantum electrodynamics) methods [5][6][7][8][9][10][11]. Their quasi-classical explanation and generalization to inhomogeneous fields required considerable effort [4,9,12,13].…”

Section: Introductionmentioning

confidence: 99%

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Spin radiative corrections to the radiation probability and power in classical and quantum electrodynamics

Lebedev

2016

J. Exp. Theor. Phys.

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Spin radiative effects in a one-particle sector of QED have a dual nature and can be understood with the Frenkel classical rotating-electron model. In the region of parameters under study ≫ 1 ( = 1 + /m 2 ) and χ ≪ 1 (χ = /m 3 ), the imaginary part of the mass shift and radiation power contain two types of spin contributions. The contributions of the first type are related to the intrinsic magnetic moment of a fermion representing an additional source of electromagnetic radiation. The contributions of the second type have the opposite sign and are caused by a small change in the electron acceleration appearing due to the Frenkel addition to the particle mass. Contributions of the second type dominate, which explains the "wrong" sign of total spin corrections. We show that not only the sign but also the values of coefficients can be explained with specified accuracy using classical electrodynamics if corrections to the mass shift (action) and radiation power are calculated in canonical variables, i.e., for fixed velocity and momentum values, respectively. The results can be treated as a demonstration of the correspondence principle in the field of radiative spin effects, in addition to correspondence between classical and quantum theories at the tree (in the external filed) level. For a e ≡ (g -2)/2 ≲ χ ≪ 1, equations of the Frenkel model lead to generalization of the system of Lorentz-BMT (Bargmann-Michel-Telegdi) equations taking into account the Frenkel addition to mass. Some features of experimental observations of the spin light are discussed.

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“…, the spin contribution to the SR power also exhibits an unusual dependence on the spin direction [4,6]: (10) where [30] (11)…”

Section: Likementioning

confidence: 97%

Section: Equations Of Motion In the Frenkel Model: Basic Approximationsmentioning

confidence: 99%

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Spin radiative corrections to the radiation probability and power in classical and quantum electrodynamics

Lebedev

2016

J. Exp. Theor. Phys.

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“…It has been shown (see 14,51) that the intense wave gives Sise to a frequency shift of the scatteredphotonwhich depends on the intensity of the wave. This remains true in our case, too, although the value of the shift is small enough for relativistic electrons considered by us.…”

Section: )mentioning

confidence: 99%

“…The probabilities of CE and SCE depend on the initial orientation of the electron spin and hence CE and SCE take part in the process of selfpolarization of the electron [13,14]. This process decreases time of relaxation as is obvious from the formulae (4), (6), (7).…”

mentioning

confidence: 93%

Intensity Effects in Scattering of Electromagnetic Waves by Electrons Moving in External Magnetic Field

Ternov¹,

Багров²,

Khalilov³

et al. 1976

Annalen der Physik

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A b s t r a c t . I n this paper we consider the emission processes of a relativistic electron moving in the field of a plane electromagnetic wave and in a homogeneous magnetic field. A detailed analysis of the most important characteristics of the radiation properties for arbitrary values of the magnetic field, compared with H , = -= 4.41 . l O I 3 gauss, is presented. Intensitatseffekte bei der Streuung elektromagnetischer Wellen durcb bewegte Elektronen im 5uBeren Magnetfeld

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Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

Bystrov¹,

Zelenovskiy²,

Nuraeva³

et al. 2019

Math.Biol.Bioinf.

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The structure and properties of diphenylalanine peptide nanotubes based on phenylalanine were investigated by various molecular modeling methods. The main approaches were semi-empirical quantum-chemical methods (PM3 and AM1), and molecular mechanical ones. Both the model structures and the structures extracted from their experimental crystallographic databases obtained by X-ray methods were examined. A comparison of optimized model structures and structures obtained by naturally-occurring self-assembly showed their important differences depending on D- and L-chirality. In both the cases, the effect of chirality on the results of self-assembly of diphenylalanine peptide nanotubes was established: peptide nanotubes based on the D-diphenylalanine (D-FF) has high condensation energy E0 in transverse direction and forms thicker and shorter peptide nanotubes bundles, than that based on L-diphenylalanine (L-FF). A topological difference was established: model peptide nanotubes were optimized into structures consisting of rings, while naturally self-assembled peptide nanotubes consisted of helical coils. The latter were different for the original L-FF and D-FF. They formed helix structures in which the chirality sign changes as the level of the macromolecule hierarchy raises. Total energy of the optimal distances between two units are deeper for L-FF (–1.014 eV) then for D-FF (–0.607 eV) for ring models, while for helix coil are approximately the same and have for L-FF (–6.18 eV) and for D-FF (–6.22 eV) by PM3 method; for molecular mechanical methods energy changes are of the order of 2–3 eV for both the cases. A topological transition between a ring and a helix coil of peptide nanotube structures is discussed: self-assembled natural helix structures are more stable and favourable, they have lower energy in optimal configuration as compared with ring models by a value of the order of 1 eV for molecular mechanical methods and 5 eV for PM3 method.

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Electron scattering by a short-range potential in a constant homogeneous magnetic field

Cited by 3 publications

References 0 publications

Spin radiative corrections to the radiation probability and power in classical and quantum electrodynamics

Spin radiative corrections to the radiation probability and power in classical and quantum electrodynamics

Intensity Effects in Scattering of Electromagnetic Waves by Electrons Moving in External Magnetic Field

Chiral Peculiar Properties of Self-Organization of Diphenylalanine Peptide Nanotubes: Modeling Of Structure and Properties

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