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arXiv · 1612.00403

Exponential reduction of finite volume effects with twisted boundary conditions

Aleksey Cherman·Srimoyee Sen·Michael L. Wagman·Laurence G. Yaffe
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Abstract

Flavor-twisted boundary conditions can be used for exponential reduction of finite volume artifacts in flavor-averaged observables in lattice QCD calculations with $SU(N_f)$ light quark flavor symmetry. Finite volume artifact reduction arises from destructive interference effects in a manner closely related to the phase averaging which leads to large $N_c$ volume independence. With a particular choice of flavor-twisted boundary conditions, finite volume artifacts for flavor-singlet observables in a hypercubic spacetime volume are reduced to the size of finite volume artifacts in a spacetime volume with periodic boundary conditions that is four times larger.

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Aleksey Cherman, Srimoyee Sen, Michael L. Wagman, Laurence G. Yaffe. 2016-12-01. Exponential reduction of finite volume effects with twisted boundary conditions. https://doi.org/10.1103/physrevd.95.074512

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