Black Lenses in Kaluza-Klein Matter

Abstract

We present the first examples of formally asymptotically flat black hole solutions with horizons of general lens space topology $L(p,q)$. These 5-dimensional static/stationary spacetimes are regular on and outside the event horizon for any choice of relatively prime integers $1\le q<p$, in particular conical singularities are absent. They are supported by Kaluza-Klein matter fields arising from higher dimensional vacuum solutions through reduction on tori. The technique is sufficiently robust that it leads to the explicit construction of regular solutions, in any dimension, realising the full range of possible topologies for the horizon as well as the domain of outer communication, that are allowable with multi-axisymmetry. Lastly, as a by product, we obtain new examples of regular gravitational instantons in higher dimensions.

6 pages; Phys. Rev. Lett., to appear; A Quanta Magazine article based on the results of this paper may be found here: https://www.quantamagazine.org/mathematicians-find-an-infinity-of-possible-black-hole-shapes-20230124/

References in corpus (8)

• A Higher Dimensional Stationary Rotating Black Hole Must be Axisymmetric
• Uniqueness theorem for 5-dimensional black holes with two axial Killing fields
• Symmetries of Higher Dimensional Black Holes
• A supersymmetric black lens
• Bubbles of nothing in binary black holes and black rings, and viceversa
• A stationary and biaxisymmetric four-soliton solution in five dimensions
• Supersymmetric black holes with a single axial symmetry in five dimensions
• On the nonexistence of a vacuum black lens