Abstract
The kinematical characteristics of distinct infalling homothetic fields are discussed by specifying the transverse subspace of their generated congruences to the energy-momentum deposit of the chosen gravitational system. This is pursued through the inclusion of the base manifold's cotangent bundle in a generalized Raychaudhuri equation and its kinematical expressions. Exploiting an electromagnetic energy-momentum tensor as the source of non-gravitational effects, I investigate the evolution of the mentioned homothetic congruences, as they fall onto a Reissner-Nordström black hole. The results show remarkable differences to the common expectations from infalling congruences of massive particles.
| Original language | English |
|---|---|
| Article number | 1950001 |
| Journal | Modern Physics Letters A |
| Volume | 34 |
| Issue number | 1 |
| DOIs | |
| State | Published - 10 Jan 2019 |
| Externally published | Yes |
Keywords
- Homothetic fields
- congruence kinematics
- cotangent bundle
- generalized Raychaudhuri equation
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