Preprint
Sep 2026
Exact and fast series expansions for quantum models with long-range interactions
Over the past decade, high-order series expansions based on linked-cluster methods have become an important tool for studying low-energy properties of gapped quantum systems with long-range interactions. We introduce a deterministic framework that removes a central computational bottleneck of this method. Our graph zet...
Antonia Duft, P. Adelhardt, J. Koziol et al.
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