4d crystal melting, toric Calabi-Yau 4-folds and brane brick models
Abstract We introduce a class of 4-dimensional crystal melting models that count the BPS bound state of Board Games branes on toric Calabi-Yau 4-folds.The crystalline structure is determined by the brane brick model associated to the Calabi-Yau 4-fold under consideration or, equivalently, its dual periodic quiver.The crystals provide a discretized