ausblenden:
Schlagwörter:
General Relativity and Quantum Cosmology, gr-qc
Zusammenfassung:
Gravitational radiation has a memory effect represented by a net change in
the relative positions of test particles. Both the linear and nonlinear sources
proposed for this radiation memory are of the "electric" type, or E mode, as
characterized by the even parity of the polarization pattern. Although
"magnetic" type, or B mode, radiation memory is mathematically possible, no
physically realistic source has been identified. There is an electromagnetic
counterpart to radiation memory in which the velocity of charged particles
obtain a net "kick". Again, the physically realistic sources of electromagnetic
radiation memory that have been identified are of the electric type. In this
paper, a global null cone description of the electromagnetic field is applied
to establish the non-existence of B mode radiation memory and the non-existence
of E mode radiation memory due to a bound charge distribution.