Progress in Normalizing Flows for 4d Gauge Theories

Daniel C. Hackett; Denis Boyda; Fernando Romero-L\'opez; Gurtej Kanwar; Julian M. Urban; Phiala E. Shanahan; Ryan Abbott

arxiv: 2502.00263 · v1 · pith:FBSYJRT4new · submitted 2025-02-01 · ✦ hep-lat

Progress in Normalizing Flows for 4d Gauge Theories

Ryan Abbott , Denis Boyda , Daniel C. Hackett , Gurtej Kanwar , Fernando Romero-L\'opez , Phiala E. Shanahan , Julian M. Urban This is my paper

classification ✦ hep-lat

keywords flowsnormalizingtheoriesgaugeprogressaccelerateactiveadvancements

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Normalizing flows have arisen as a tool to accelerate Monte Carlo sampling for lattice field theories. This work reviews recent progress in applying normalizing flows to 4-dimensional nonabelian gauge theories, focusing on two advancements: an architectural improvement referred to as learned active loops, and the application of correlated ensemble methods to QCD with $N_f=2$ dynamical fermions.

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