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Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Hadron Spectroscopy and Interactions
Computing the static potential using non-string-like trial states
T. Neitzel,* J. Kämper, O. Philipsen, M. Wagner
*corresponding author
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Pre-published on: 2016 December 27
Published on: 2017 March 24
We present a method for computing the static quark-antiquark potential, which is not based on Wilson loops, but where the trial states are formed by eigenvector components of the covariant
lattice Laplace operator. We have tested this method in SU(2) Yang-Mills theory and have obtained results with statistical errors of similar magnitude compared to a standard Wilson loop
computation. The runtime of the method is, however, significantly smaller, when computing the static potential not only for on-axis, but also for many off-axis quark-antiquark separations, i.e.
when a fine spatial resolution is required.
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