We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A twist in the geometry of rotating black holes: seeking the cause of acausality.
- Authors
Hajnal Andréka; István Németi; Christian Wüthrich
- Abstract
Abstract We investigate Kerr–Newman black holes in which a rotating charged ring-shaped singularity induces a region which contains closed timelike curves (CTCs). Contrary to popular belief, it turns out that the time orientation of the CTC is opposite to the direction in which the singularity or the ergosphere rotates. In this sense, CTCs “counter-rotate” against the rotating black hole. We have similar results for all spacetimes sufficiently familiar to us in which rotation induces CTCs. This motivates our conjecture that perhaps this counter-rotation is not an accidental oddity particular to Kerr–Newman spacetimes, but instead there may be a general and intuitively comprehensible reason for this.
- Subjects
KERR black holes; COSMIC rotation; MATHEMATICAL singularities; ALGEBRAIC curves; LOGICAL prediction
- Publication
General Relativity & Gravitation, 2008, Vol 40, Issue 9, p1809
- ISSN
0001-7701
- Publication type
Article