PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Physics beyond the Standard Model
On the calculation and use of non-zero momentum correlators in lattice simulations.
C. Rebbi
Full text: pdf
Published on: May 29, 2019
Abstract
In lattice simulations one generally projects correlators over zero spatial momentum to calculate masses and related spectral data. The sum over space lattice points, however, discards information which may be useful especially in the calculation of
disconnected diagrams. By using momentum conservation, the calculation of non-zero momentum components of disconnected diagrams and other quantities related to space convolutions can be done with little additional computational cost and may
be useful in the analysis of disconnected correlators.
DOI: https://doi.org/10.22323/1.334.0201
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