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no code implementations • 3 Mar 2021 • Gurtej Kanwar, Michael L. Wagman

The character expansion defining the HFK action is divergent, and in this work we apply a path integral contour deformation to obtain a convergent representation for U(1) HFK path integrals suitable for numerical Monte Carlo calculations.

High Energy Physics - Lattice High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory Quantum Physics

no code implementations • 29 Jan 2021 • William Detmold, Gurtej Kanwar, Henry Lamm, Michael L. Wagman, Neill C. Warrington

We define a family of contour deformations applicable to $SU(N)$ lattice gauge theory that can reduce sign and signal-to-noise problems associated with complex actions and complex observables.

High Energy Physics - Lattice Statistical Mechanics Nuclear Theory

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