Caged black holes: Black holes in compactified spacetimes. II. 5D numerical implementation

Evgeny Sorkin*, Barak Kol, Tsvi Piran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations


We describe the first convergent numerical method to determine static black hole solutions (with an [Formula Presented] horizon) in 5D compactified spacetime. We obtain a family of solutions parametrized by the ratio of the black hole size and the size of the compact extra dimension. The solutions satisfy the demanding integrated first law. For small black holes our solutions approach the 5D Schwarzschild solution and agree very well with new theoretical predictions for the small corrections to thermodynamics and geometry. The existence of such black holes is thus established. We report on thermodynamical (temperature, entropy, mass and tension along the compact dimension) and geometrical measurements. Most interestingly, for large masses (close to the Gregory-Laflamme critical mass) the scheme destabilizes. We interpret this as evidence for an approach to a physical tachyonic instability. Using extrapolation we speculate that the system undergoes a first order phase transition.

Original languageAmerican English
Pages (from-to)23
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number6
StatePublished - 2004


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