Crystals and intersecting branes

Abstract

We show that the index of BPS bound states of D4, D2 and D0 branes in IIA theory compactified on a toric Calabi Yau are encoded in the combinatoric counting of restricted three dimensional partitions. Using the torus symmetry, we demonstrate that the Euler character of the moduli space of bound states localizes to the number of invariant configurations that can be obtained by gluing D0 bound states in the C^3 vertex along the D2 brane wrapped P^1 legs of the toric diagram. We obtain a geometric realization of these configurations as a crystal associated to the extra bound states of D0 branes at the singular points of a single D4 brane wrapping a high degree equivariant surface that carries the total D4 charge. We reproduce some known examples of the partition function computed in the opposite regime where D0 and D2 charge are dissolved into D4 flux, as well as significantly generalize these results. The crystal representation of the BPS bound states provides a direct realization of the OSV relation to the square of the topological string partition function, which in toric Calabi Yau is also described by a theory of three dimensional partitions.

23 pages, 5 figures

References in corpus (5)

• Black Hole Attractors and the Topological String
• Two Dimensional Yang-Mills, Black Holes and Topological Strings
• Baby Universes in String Theory
• Derivation of Calabi-Yau Crystals from Chern-Simons Gauge Theory
• BPS Microstates and the Open Topological String Wave Function

Cited by in corpus (11)

• Cohomological Hall algebras, vertex algebras and instantons
• Webs of W-algebras
• Black Holes, Instanton Counting on Toric Singularities and q-Deformed Two-Dimensional Yang-Mills Theory
• Plane partitions with a "pit": generating functions and representation theory
• Instantons on ALE spaces and orbifold partitions
• On Extensions of $\widehat{\mathfrak{gl}(m|n)}$ Kac-Moody algebras and Calabi-Yau Singularities
• Wall-crossing of D4-D2-D0 and flop of the conifold
• Topological Quiver Matrix Models and Quantum Foam
• A Comment on Quantum Distribution Functions and the OSV Conjecture
• Topological Strings, Two-Dimensional Yang-Mills Theory and Chern-Simons Theory on Torus Bundles
• Black Hole Partition Function using Hybrid Formalism of Superstrings