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pro vyhledávání: '"Radi I. Khrapko"'
Autor:
Radi I. Khrapko
Publikováno v:
Journal of Modern Optics. 68:1181-1186
It is shown that the electromagnetic field in the well-known Beth’s experiment contains no linear momentum. This means that the angular momentum of the field in Beth’s experiment is zero, since the...
Autor:
Radi I. Khrapko
Publikováno v:
Optik. 181:1080-1084
When the canonical spin tensor is used, a spin is detected along the axis of rotation of a rotating electric dipole. Early this spin radiation was obtained by Feynman in the frame of quantum mechanics. The magnitude of the spin flux is half the flux
Autor:
Radi I. Khrapko
Publikováno v:
Optik. 154:806-810
We demonstrate the transfer of momentum, energy, and spin from a plane circularly polarized electromagnetic wave into an absorber. Lorentz transformations are used for the flux densities because a moving absorber is considered. The given calculations
Autor:
Radi I. Khrapko
Publikováno v:
Optik. 136:503-506
We demonstrate the fulfilment of the conservation laws with respect to fluxes of momentum, energy, spin, and the number of photons when a plane circularly polarized electromagnetic wave reflects from a receding mirror at normal incidence. The given c
Autor:
Radi I. Khrapko
Publikováno v:
Optik. 210:164527
The use of the electrodynamics spin tensor in parallel with the energy-momentum tensor proves absorption of spin and energy of a plane circularly polarized electromagnetic wave and so confirms the absorption, which was calculated in a previous paper
Autor:
Radi I. Khrapko
Publikováno v:
Optik. 203:164021
Jefimenko's generalization of the Coulomb and Bio-Savard laws is used to calculate the reaction of the radiation on the rotating electric dipole. It is found that the energy taken from the dipole is equal to the recognized value of the radiated energ
Autor:
Radi I. Khrapko
Publikováno v:
Journal of Physics: Conference Series. 1172:012055
When the canonical spin tensor is used, a spin is detected along the axis of rotation of a rotating electric dipole. Early this spin radiation was obtained by Feynman in the frame of quantum mechanics. The magnitude of the spin flux is half the flux
Autor:
Radi I. Khrapko
Publikováno v:
Physics-Uspekhi. 58:1115-1117
It is shown that the gravitational and inertial masses of a photon or, indeed, of any body are equal. Motion past and free fall onto a center of gravitational attraction are considered.
Autor:
Radi I. Khrapko
Publikováno v:
Quantum Electronics. 42:1133-1136
It has been known since the 19th century that a circularly polarised electromagnetic wave carries an angular momentum. A simple experiment (Righi, 1882) apparently indicates that the angular momentum is distributed over the entire cross section of th
Autor:
Radi I. Khrapko
Publikováno v:
Journal of Modern Optics. 55:1487-1500
A circularly polarized electromagnetic beam is considered, which is absorbed by a plane, and the mechanical stress produced in the plane by the beam is calculated. It is shown that the central part of the beam produces a torque at the central region