Abstract
In \cite{JKS} we gave an (additive) categorification of Grassmannian cluster algebras, using the category $\CM(A)$ of Cohen-Macaulay modules for a certain Gorenstein order . In this paper, using a cluster tilting object in the same category $\CM(A)$, we construct a compatible pair , which is the data needed to define a quantum cluster algebra. We show that when is defined from a cluster tilting object with rank 1 summands, this quantum cluster algebra is (generically) isomorphic to the corresponding quantum Grassmannian.
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