Cluster algebra conjecture for quantum cohomology of quiver critical loci

Let (Q,W,v)(\mathbf{Q},\mathbf{W},\mathbf{v}) be a quiver with potential and dimension vector, with associated quiver variety XX and superpotential, and let ZZ be its critical locus; define ZZ' similarly for the mutated quiver with potential (Q,W,v)(\mathbf{Q}',\mathbf{W}',\mathbf{v}'). Let A\mathcal{A} be the cluster algebra associated with Q\mathbf{Q}, let QHGW(Z)\operatorname{QH}^{\mathrm{GW}}(Z) and QHGW(Z)\operatorname{QH}^{\mathrm{GW}}(Z') denote the quantum cohomology rings, and let tt be an extra independent variable. Cluster algebra conjecture. The quantum cohomology rings of ZZ and ZZ' are naturally isomorphic. Moreover, there is an injective map of algebras

ψ:AQHGW(Z)[t]QHGW(Z)[t].\psi:\mathcal{A}\to\operatorname{QH}^{\mathrm{GW}}(Z)[t]\cong\operatorname{QH}^{\mathrm{GW}}(Z')[t].

In particular, the cluster variables are sent to Chern polynomials ct(V)c_t(\mathcal{V}) for certain tautological bundles V\mathcal{V} on ZZ. This conjecture proposes a direct relationship between cluster algebras and quantum cohomology in the setting of quiver varieties and their critical loci; the source provides no resolution status.

Sources & referencesView supporting material

Primary source

Yingchun Zhang and Zijun Zhou, “Cluster algebra and quasimap quantum cohomology”, arXiv:2511.09875 (2025).

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