Reweighting Lefschetz Thimbles

@article{Blcher2018ReweightingLT,
  title={Reweighting Lefschetz Thimbles},
  author={Stefan Bl{\"u}cher and Jan M. Pawlowski and Manuel Scherzer and Mike Schlosser and Ion-Olimpiu Stamatescu and Sebastian Syrkowski and Felix P. G. Ziegler},
  journal={arXiv: High Energy Physics - Lattice},
  year={2018}
}
One of the main challenges in simulations on Lefschetz thimbles is the computation of the relative weights of contributing thimbles. In this paper we propose a solution to that problem by means of computing those weights using a reweighting procedure. Besides we present recipes for finding parametrizations of thimbles and anti-thimbles for a given theory. Moreover, we study some approaches to combine the Lefschetz thimble method with the Complex Langevin evolution. Our numerical investigations… Expand

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