Local refinement after cotengra yields a bond-dimension-dependent cost advantage on Sycamore topologies that is absent on random or QAOA graphs.
Solving the sampling problem of the sycamore quantum circuits.Physical Review Letters, 129(9):090502
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Bond-dimension scaling of a local-refinement advantage over hyperoptimized tensor-network contraction on Sycamore like topologies
Local refinement after cotengra yields a bond-dimension-dependent cost advantage on Sycamore topologies that is absent on random or QAOA graphs.