Speaker
Xiao-Yong Jin
Description
We explore how a change of variables impacts HMC sampling in lattice gauge theories. Using a 2D U(1) pure gauge system as a testbed, we introduce a local change of variables while keeping the computational cost of the Jacobian low. We analyze how different formulations affect the effective action and the effective force, comparing them to existing field transformation techniques in the literature. We show the scaling behavior of the HMC sampling for the 2D U(1) pure gauge system and discuss the extensibility of this approach to 4D SU(3).