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arxiv: 1311.7304 · v1 · submitted 2013-11-28 · ✦ hep-lat

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Critical slowing down and the gradient flow coupling in the Schr\"odinger functional

Patrick Fritzsch , Alberto Ramos , Felix Stollenwerk
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classification ✦ hep-lat
keywords couplingflowgradientsectorstopologicalalgorithmalternativecharge
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We study the sensitivity of the gradient flow coupling to sectors of different topological charge and its implications in practical situations. Furthermore, we investigate an alternative definition of the running coupling that is expected to be less sensitive to the problems of the HMC algorithm to efficiently sample all topological sectors.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Non-perturbative renormalization of the energy momentum tensor in the 2d O(3) nonlinear sigma model

    hep-lat 2026-02 unverdicted novelty 4.0

    The authors determine the renormalization constants z_T and Z_T for the energy-momentum tensor in the non-singlet sector using a modified lattice action with shifted boundary conditions and gradient-flow coupling.