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Luescher-Weisz algorithm for excited states of the QCD flux-tube

Presenter: Bastian Brandt — University of Münster

Bastian Brandt, Pushan Majumdar

We present a variation of the Luescher-Weisz multilevel algorithm ideally suited for studying excited states of the QCD flux-tube. While the original version achieved error reduction only in the temporal direction, the new algorithm reduces fluctuations in the sources as well. We report on the implementation of this algorithm as well as improvement over the older computational method.