PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Nonzero Temperature and Density
Topological Susceptibility to High Temperatures via Reweighting
P.T. Jahn,* G.D. Moore, D. Robaina
*corresponding author
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Published on: May 29, 2019
We measure the topological susceptibility of quenched QCD on the lattice at two high temperatures.
For this, we define topology with the help of gradient flow and mitigate the statistical problem of
topology at high temperatures using a reweighting technique. This allows us to enhance tunneling
events between topological sectors and alleviate topological freezing.
We quote continuum extrapolated results for the susceptibility at
$2.5$ and $4.1~T_\mathrm c$ that agree well with the existing literature. We conclude that the
method is feasible and can be extended to unquenched QCD with no conceptual problems.
DOI: https://doi.org/10.22323/1.334.0155
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