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| Main Authors: | , |
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| Format: | Preprint |
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2026
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| Online Access: | https://arxiv.org/abs/2603.08815 |
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| _version_ | 1866918380647219200 |
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| author | Carcamo, Mario Franco, Sebastián |
| author_facet | Carcamo, Mario Franco, Sebastián |
| contents | We extend the study of the recently introduced crystal melting models associated to toric Calabi-Yau 4-folds in several directions. In particular, we investigate in greater detail the structure of these models for general toric CY 4-folds and flavor configurations, using the explicit example of $Q^{1,1,1}$ to illustrate our ideas. To this end, we develop an efficient algorithm for constructing crystals based on periodic quivers. A central goal of this work is to understand the behavior of crystals and their partition functions under triality. We analyze the evolution of crystals along periodic triality cascades and generate detailed data for these systems, including Hasse diagrams, partition functions, and the multiplicities of melting configurations. We introduce the notion of stable variables and show that they lead to the stabilization of the partition functions along cascades. Finally, we define the profile of the crystal partition function and observe that, when expressed in terms of stable variables, it displays interesting behavior. A further motivation for this work is to generate empirical data that may guide the search for a physically motivated generalization of cluster algebras associated with $2d$ (0,2) quiver theories and their triality transformations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_08815 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Crystal Melting, Triality and Partition Functions for Toric Calabi-Yau Fourfolds Carcamo, Mario Franco, Sebastián High Energy Physics - Theory Algebraic Geometry Combinatorics We extend the study of the recently introduced crystal melting models associated to toric Calabi-Yau 4-folds in several directions. In particular, we investigate in greater detail the structure of these models for general toric CY 4-folds and flavor configurations, using the explicit example of $Q^{1,1,1}$ to illustrate our ideas. To this end, we develop an efficient algorithm for constructing crystals based on periodic quivers. A central goal of this work is to understand the behavior of crystals and their partition functions under triality. We analyze the evolution of crystals along periodic triality cascades and generate detailed data for these systems, including Hasse diagrams, partition functions, and the multiplicities of melting configurations. We introduce the notion of stable variables and show that they lead to the stabilization of the partition functions along cascades. Finally, we define the profile of the crystal partition function and observe that, when expressed in terms of stable variables, it displays interesting behavior. A further motivation for this work is to generate empirical data that may guide the search for a physically motivated generalization of cluster algebras associated with $2d$ (0,2) quiver theories and their triality transformations. |
| title | Crystal Melting, Triality and Partition Functions for Toric Calabi-Yau Fourfolds |
| topic | High Energy Physics - Theory Algebraic Geometry Combinatorics |
| url | https://arxiv.org/abs/2603.08815 |