Improved local truncation schemes for the higher-order tensor renormalization group method

URN to cite this document:: urn:nbn:de:bvb:355-epub-749835
DOI to cite this document:: 10.5283/epub.74983

Bloch, Jacques

; Lohmayer, Robert ; Meister, Maximilian ; Nunhofer, Michael

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Date of publication of this fulltext: 18 Feb 2025 06:11

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Abstract

The higher-order tensor renormalization group is a tensor-network method providing estimates for the partition function and thermodynamical observables of classical and quantum systems in thermal equilib-rium. At every step of the iterative blocking procedure, the coarse-grid tensor is truncated to keep the tensor dimension under control. For a consistent tensor blocking procedure, it is crucial ...