Non-extremal black hole microstates: Fuzzballs of fire or fuzzballs of fuzz ?

Iosif Bena (1) , Andrea Puhm (1) , Bert Vercnocke (1)

1 IPHT - Institut de Physique Théorique - UMR CNRS 3681

We construct the first family of microstate geometries of near-extremal black holes, by placing metastable supertubes inside certain scaling supersymmetric smooth microstate geometries. These fuzzballs differ from the classical black hole solution macroscopically at the horizon scale, and for certain probes the fluctuations between various fuzzballs will be visible as thermal noise far away from the horizon. We discuss whether these fuzzballs appear to infalling observers as fuzzballs of fuzz or as fuzzballs of fire. The existence of these solutions suggests that the singularity of non-extremal black holes is resolved all the way to the outer horizon and this "backwards in time" singularity resolution can shed light on the resolution of spacelike cosmological singularities.

Keywords: Black Holes in String Theory; D-branes; Black Holes

Domains: General Relativity and Quantum Cosmology [gr-qc]; High Energy Physics - Theory [hep-th]

Iosif Bena, Andrea Puhm, Bert Vercnocke. Non-extremal black hole microstates: Fuzzballs of fire or fuzzballs of fuzz ?. Journal of High Energy Physics, 2012, 2012, pp.014. ⟨10.1007/JHEP12(2012)014⟩. ⟨cea-00822649⟩