Papers › Carving-width and contraction trees for tensor networks
Carving-width and contraction trees for tensor networks
J. Jakes-Schauer, D. Anekstein, P. Wocjan
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We study the problem of finding contraction orderings on tensor networks for physical simulations using a syncretic abstract data type, the contraction-tree, and explain its connection to temporal and spatial measures of tensor contraction computational complexity (nodes express time; arcs express space). We have implemented the Ratcatcher of Seymour and Thomas for determining the carving-width of planar networks, in order to offer experimental evidence that this measure of spatial complexity makes a generally effective heuristic for limiting their total contraction time.
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