Folklore stability conjecture for supersymmetric branes

Let XX be a Calabi–Yau manifold with mirror Xˇ\check{X}, let LL be a Lagrangian in Xˇ\check{X}, and let EE be a holomorphic vector bundle on XX. Write DbFuk(Xˇ)D^{b}{\rm Fuk}(\check{X}) for the derived Fukaya category and DbCoh(X)D^{b}\operatorname{Coh}(X) for the bounded derived category of coherent sheaves. A Lagrangian is special Lagrangian if it can be represented by a special Lagrangian, and a bundle admits a deformed Hermitian–Yang–Mills metric if it admits a metric solving the deformed Hermitian–Yang–Mills equation. Folklore conjecture. There is a Bridgeland stability condition on DbFuk(Xˇ)D^{b}{\rm Fuk}(\check{X}) (respectively, DbCoh(X)D^{b}\operatorname{Coh}(X)) such that the isomorphism class of LL (respectively, EE) is stable if and only if it contains a special Lagrangian (respectively, EE admits a metric solving the deformed Hermitian–Yang–Mills equation). This is a proposed categorical formulation of the correspondence between stability and supersymmetric A/BA/B-branes; the source gives no resolution of the conjecture.

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Primary source

Tristan C. Collins and Shing-Tung Yau, “Moment maps, nonlinear PDE, and stability in mirror symmetry”, arXiv:1811.04824 (2018).

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