Reweighting Lefschetz Thimbles

16 Jan 2019 · Bluecher Stefan, Pawlowski Jan M., Scherzer Manuel, Schlosser Mike, Stamatescu Ion-Olimpiu, Syrkowski Sebastian, Ziegler Felix P. G. ·

We present a novel reweighting technique to calculate the relative weights in the Lefschetz thimble decomposition of a path integral. Our method is put to work using a $U(1)$ one-link model providing for a suitable testing ground and sharing many features with realistic gauge theories with fermions at finite density. We discuss prospects and future challenges to our method.

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Reweighting Lefschetz Thimbles

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