Black Hole Attractors and the Topological String
arXiv:hep-th/0405146 · doi:10.1103/PhysRevD.70.106007
Abstract
A simple relationship of the form Z_BH = |Z_top|^2 is conjectured, where Z_BH is a supersymmetric partition function for a four-dimensional BPS black hole in a Calabi-Yau compactification of Type II superstring theory and Z_top is a second-quantized topological string partition function evaluated at the attractor point in moduli space associated to the black hole charges. Evidence for the conjecture in a perturbation expansion about large graviphoton charge is given. The microcanonical ensemble of BPS black holes can be viewed as the Wigner function associated to the wavefunction defined by the topological string partition function.
arXiv comment32 pages, harvmac
References in corpus (38)
- Monopole Condensation, And Confinement In N=2 Supersymmetric Yang-Mills Theory
- Microscopic Origin of the Bekenstein-Hawking Entropy
- Black Hole Entropy is Noether Charge
- Some Properties of Noether Charge and a Proposal for Dynamical Black Hole Entropy
- N=2 Extremal Black Holes
- Black Hole Entropy in M-Theory
- Two Dimensional Gauge Theories Revisited
- D--branes and Spinning Black Holes
- Anti-de Sitter Fragmentation
- Macroscopic Entropy of Extremal Black Holes
- D-Branes and Topological Field Theories
- Holomorphic Anomalies in Topological Field Theories
- Supergravity flows and D-brane stability
- Self-Dual Strings and N=2 Supersymmetric Field Theory
- Two Dimensional QCD is a String Theory
- Topological Amplitudes in String Theory
- Corrections to macroscopic supersymmetric black-hole entropy
- A New Supersymmetric Index
- Nonperturbative Results on the Point Particle Limit of N=2 Heterotic String Compactifications
- AdS2 Quantum Gravity and String Theory
- Quantum Foam and Topological Strings
- Two Dimensional QCD as a String Theory
- Quantum Background Independence In String Theory
- Twists and Wilson Loops in the String Theory of Two Dimensional QCD
- Arithmetic and Attractors
- Macroscopic entropy formulae and non-holomorphic corrections for supersymmetric black holes
- Deformation Quantization: Quantum Mechanics Lives and Works in Phase-Space
- Large N 2D Yang-Mills Theory and Topological String Theory
- Special Quantum Field Theories In Eight And Other Dimensions
- S-duality and Topological Strings
- Euclidean SYM Theories by Time Reduction and Special Holonomy Manifolds
- Higher Dimensional Analogues of Donaldson-Witten Theory
- N=2 strings and the twistorial Calabi-Yau
- Les Houches Lectures on Strings and Arithmetic
- Area law corrections from state counting and supergravity
- On the partition sum of the NS five-brane
- Attractors and Arithmetic
- Gauge theory, topological strings, and S-duality
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