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Register a new userGeodesic congruences, impulsive gravitational waves and gravitational memory
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Added by
Hovhannes Demirchian
Publication date
2018
fields
Physics
and research's language is
English
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In this paper we introduce a new approach to the study of the effects that an impulsive wave, containing a mixture of material sources and gravitational waves, has on a geodesic congruence that traverses it. We find that the effect of the wave on the congruence is a discontinuity in the B-tensor of the congruence. Our results thus provide a detector independent and covariant characterization of gravitational memory.
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