Rotating Black Holes in Unified Theories
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概要
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Some remarkable properties of the supersymmetric five-dimensional rotating solutions of Beckenridge, Myers, Peet and Vafa are described. The solutions may be under-rotating, in which case they are extreme black holes or over-rotating, in which case they are naked time machines. The geodesics and global structure of the spacetime are analysed, including the possibility of time travel by freely falling observers. I argue, following recent work with C. Herdeiro, that the over-rotating solutions cannot be reached from the under-rotating black hole solutions by a physical process using a finite amount of energy. This would fit in with the Chronology Protection conjecture.
- 理論物理学刊行会の論文
- 2000-01-31