The Institute of Physics ( IOP ) по журналам "Journal of Physics A: General Physics"
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(19680501)The theory of helicon propagation in a periodic structure has been formulated. It assumes the plasma to be cold and collisionless, and introduces a periodic modulation of electron density or of external magnetic field. The ...

(19720101)It is shown that if the spacetime of a system composed of a perfect fluid coupled to a frozenin magnetic field has two Killing vector fields, one of them collinear to four velocity and the other proportional to the ...

(19710101)The transverse 'Fresnel ether drag' experienced when light passes through a refracting medium moving at right angles to the original direction of the light, and confirmed indirectly by Airy's water filled telescope ...

(19701101)Absorption intensities are given in terms of the vapour phase solute transition dipole moment, and the dielectric properties of the solvent. The Chako factor is derived from perturbation theory and shown to be due to ...

(19701101)Expressions for the dielectric constant of a pure liquid are obtained from quantum electrodynamics, and compared with those obtained from electrostatic arguments. The Lorentz cavity field is shown to be associated with ...

(19690501)The absorption and refractive index increments due to continuous distributions of resonances have been calculated for both Debyetype distributions and for distributions Gaussian in logarithmic frequency. Comparison of the ...

(19680501)The nonmesonic and nonradiative capture processes of K mesons in light nuclei, K+2N > +N and K+2N > +N, have been investigated using a pairabsorption model. It is shown that the ratio of the capture rate by the ...

(19721201)The author considers the superpropagator constructed from a chiral SU(2)*SU(2) invariant Lagrangian. He shows in general how the complications arising from the derivative couplings can be separated from the nonpolynomial, ...

(19710701)On the basis of a calculation for the force and couple exerted on a moving point dipole given previously, a consistent description of classical spin for particles possessing charge and dipole moment is discussed.

(19710301)Results are given of an investigation into an electron avalanche produced by microwaves at the electron cyclotron resonance frequency in the presence of crossed electric and magnetic fields.

(19680301)The motion of relativistic electrons close to the xy plane when subjected to static magnetic and electric fields (0, 0, B0) and (0, E0(1ay), E0az) is analysed, B0, E0 and a being positive constants. The focusing properties ...

(19710501)The angular distribution of photoelectrons emitted from the K shell of lead and platinum by 483 keV linearly polarized photons has been studied. At forward emission angles the photoelectrons are emitted predominantly in ...

(19710701)Action principles using the Eulerian description are proposed for the elastic solid and perfect fluid in general relativity. By taking into account the constraints on the independent variables appearing in the Lagrangian ...

(19680101)The paper demonstrates the existence of a solution of the EinsteinMaxwell equations in general relativity where matter coexists with a cylindrically symmetric axial field.

(19680101)The density field formalism of Sherrington is used to obtain diagrammatic expansions and thus complete expressions for the quantities evaluation of the density correlation function. It is shown how these diagrammatic ...

(19711101)Measurements of the probability P(0) of detecting zero optical photons during a fixed counting time are used to verify an exact calculation of this quantity for the case of gaussian light with a Lorentz spectral line. The ...

(19710701)Direct use of a generalized Laplace transform is proposed for applications in nonequilibrium quantum statistics. The method includes the equilibrium 'doubletime' Green's function method as a special case. An example is ...

(19710501)General results are developed for the Green function appropriate to radiation or diffraction in anisotropic media. The formulae may be evaluated from a knowledge of the geometry of the wavevector surfaces. The results allow ...

(19721201)An algebraic approach to the solution of the KleinGordon equation is described for the case of a charged particle in the presence of planewave electromagnetic radiation. From an examination of the commutation relations ...
Отображаемые элементы 120 из 644