Properties of Overlap and Domain Wall Fermions in the 2+1D Thirring Model

Abstract

We present some results pertaining to partially quenched formulations of the overlap/domain wall operator with the Thirring model in 2+1D. Auxiliary fields are generated with a Shamir domain wall approach and measurements of eigenvalues and condensates are contrasted with different overlap operators. The numerical challenge posed by a non-compact formulation is highlighted, and the effective use of lower accuracy sea fermions is demonstrated.

Comments: 8 pages, 7 figures, 38th International Symposium on Lattice Field Theory, Lattice 2021, 26th-30th July, 2021, Zoom/Gather@Masaschusetts Institute of Technology