Accession Number : AD0718145

Title :   Electromagnetic Field and Wave Propagation in Gravitation.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA INST OF TECH PASADENA ANTENNA LAB

Personal Author(s) : Mo,Tse Chin ; Papas,Charles H.

Report Date : JAN 1971

Pagination or Media Count : 20

Abstract : From the physical 3-vector Maxwell equations for an electromagnetic (EM) field in static gravitation, one examines the artifice of replacing the gravitation by an equivalent medium and one finds modified Debye potentials for an EM wave in a simple, angularly homogeneous, material medium in a Schwarzschild gravity. The fact that these potentials do not obey the generalized scalar wave equation implies that gravitation scatters the vector EM wave and a scalar wave differently. Also, one obtains and solve by perturbation the amplitude and eikonal equations for a high frequency wave in a weak spherical gravitational field. To the order M/r, the state of transverse polarization does not change along a ray path whereas the transverse field amplitudes are modified by the factor exp(M/r) which strengthens the field near the mass. The longitudinal field amplitude, on the other hand, is modified by exp(-M/r). These effects, in principle, may provide a further test of classical EM theory and general relativity. (Author)

Descriptors :   (*ELECTROMAGNETIC FIELDS, GRAVITY), (*ELECTROMAGNETISM, *RELATIVITY THEORY), PARTIAL DIFFERENTIAL EQUATIONS, OPERATORS(MATHEMATICS), WAVE FUNCTIONS, FIELD THEORY, SET THEORY, ELECTROMAGNETIC RADIATION, PROPAGATION

Subject Categories : Quantum Theory and Relativity
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE