An adaptive patching method exploits block-sparse QTT structures to reduce computational costs for tensor contractions and enables efficient evaluation of bubble diagrams and Bethe-Salpeter equations.
von Delft,Lecture Notes on Tensor Networks for Many-Body Physics, Ludwig- Maximilians University of Munich, Theoretical Solid State Physics, Lecture Notes (2023)
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Adaptive Patching for Tensor Train Computations
An adaptive patching method exploits block-sparse QTT structures to reduce computational costs for tensor contractions and enables efficient evaluation of bubble diagrams and Bethe-Salpeter equations.