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arXiv · 1203.0214

Another Mass Gap in the BTZ Geometry?

Sean Stotyn·Robert B. Mann
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Abstract

We attempt the construction of perturbative rotating hairy black holes and boson stars, invariant under a single helical Killing field, in 2+1-dimensions to complete the perturbative analysis in arbitrary odd dimension recently put forth in \cite{Stotyn:2011ns}. Unlike the higher dimensional cases, we find evidence for the non-existence of hairy black holes in 2+1-dimensions in the perturbative regime, which is interpreted as another mass gap, within which the black holes cannot have hair. The boson star solutions face a similar impediment in the background of a conical singularity with a sufficiently high angular deficit, most notably in the zero-mass BTZ background where boson stars cannot exist at all. We construct such boson stars in the AdS_3 background as well as in the background of conical singularities of periodicities \pi,2\pi/3,\pi/2.

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Sean Stotyn, Robert B. Mann. 2012-03-01. Another Mass Gap in the BTZ Geometry?. https://doi.org/10.1088/1751-8113/45/37/374025

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