A tensor-train approximation of the bath influence functional enables deterministic, linearly scaling numerical quadrature for the inchworm method in open quantum system simulations.
Oseledets, A new tensor decomposition, in: Doklady Mathematics, Vol
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Accelerated Inchworm Method with Tensor-Train Bath Influence Functional
A tensor-train approximation of the bath influence functional enables deterministic, linearly scaling numerical quadrature for the inchworm method in open quantum system simulations.