Wall Crossing of BPS States on the Conifold from Seiberg Duality and Pyramid Partitions
arXiv:0810.5072 · doi:10.1007/s00220-009-0832-2
Abstract
In this paper we study the relation between pyramid partitions with a general empty room configuration (ERC) and the BPS states of D-branes on the resolved conifold. We find that the generating function for pyramid partitions with a length n ERC is exactly the same as the D6/D2/D0 BPS partition function on the resolved conifold in particular Kaehler chambers. We define a new type of pyramid partition with a finite ERC that counts the BPS degeneracies in certain other chambers. The D6/D2/D0 partition functions in different chambers were obtained by applying the wall crossing formula. On the other hand, the pyramid partitions describe T^3 fixed points of the moduli space of a quiver quantum mechanics. This quiver arises after we apply Seiberg dualities to the D6/D2/D0 system on the conifold and choose a particular set of FI parameters. The arrow structure of the dual quiver is confirmed by computation of the Ext group between the sheaves. We show that the superpotential and the stability condition of the dual quiver with this choice of the FI parameters give rise to the rules specifying pyramid partitions with length n ERC.
23 pages, 8 figures. CMP version
References in corpus (7)
- Stability structures, motivic Donaldson-Thomas invariants and cluster transformations
- Calabi-Yau algebras
- Non-commutative Donaldson-Thomas theory and the conifold
- Seiberg Duality for Quiver Gauge Theories
- Wall crossing in local Calabi Yau manifolds
- Computing a pyramid partition generating function with dimer shuffling
- Topological Quiver Matrix Models and Quantum Foam