Exact Microscopic Entropy of Non-Supersymmetric Extremal Black Rings
arXiv:0803.1801 · doi:10.1088/0264-9381/25/17/175005
Abstract
In this brief note we show that the horizon entropy of the largest known class of non-supersymmetric extremal black rings, with up to six parameters, is exactly reproduced for all values of the ring radius using the same conformal field theory of the four-charge four-dimensional black hole. A particularly simple case is a dipole black ring without any conserved charges. The mass gets renormalized, but the first corrections it receives can be easily understood as an interaction potential energy. Finally, we stress that even if the entropy is correctly reproduced, this only implies that one sector of chiral excitations has been identified, but an understanding of excitations in the other sector is still required in order to capture the black ring dynamics.
arXiv comment7 pages. v2: minor improvements, ref added
References in corpus (16)
- Black Hole Entropy in M-Theory
- A supersymmetric black ring
- Rotating Attractors
- Rotating Circular Strings, and Infinite Non-Uniqueness of Black Rings
- Black Rings
- Microscopic Description of Black Rings in AdS/CFT
- Microstates of a Neutral Black Hole in M Theory
- Non-supersymmetric black rings as thermally excited supertubes
- Microscopic Entropy of the Black Ring
- Microscopic Theory of Black Hole Superradiance
- Statistical Description of Rotating Kaluza-Klein Black Holes
- One entropy function to rule them all
- Counting the Microstates of a Kerr Black Hole
- Entropy of Thermally Excited Black Rings
- Fundamental Plasmid Strings and Black Rings
- Oscillator Level for Black Holes and Black Rings
Cited by in corpus (11)
- A classification of near-horizon geometries of extremal vacuum black holes
- Universal properties and the first law of black hole inner mechanics
- Blackfolds in Supergravity and String Theory
- Supergravity Solutions from Floating Branes
- Uniqueness of near-horizon geometries of rotating extremal AdS(4) black holes
- Holographic Descriptions of Black Rings
- A General Black String and its Microscopics
- Dual 2d CFT Identification of Extremal Black Rings from Holes
- Constructing near-horizon geometries in supergravities with hidden symmetry
- New asymptotically (Anti)-de Sitter black holes in (super)gravity
- Entanglement entropy for non-zero genus topologies