The 43rd International Symposium on Lattice Field Theory (Lattice 2026)

Zeros of the partition function for 12 flavor QCD and the spectral gap

28 Jul 2026, 15:00

20m

Margaret Brent B (Adele H. Stamp Student Union)

Contributed talk Theoretical developments and applications beyond the Standard Model Theoretical developments and applications beyond the SM

Speaker

Yannick Meurice (University of Iowa)

Description

We discuss recent numerical results for the zeros of the partition function for a four dimensional SU(3) lattice gauge theory with 12 staggered fermions having identical masses and an unimproved action (arXiv: 2606.14642).
Our results indicate that beyond some critical mass, a gap between the lowest zero and the real axis in the complex coupling plane develops and can be related to the spectral gap for the 0++ scalar. We comment on related results by Jin and Mawhinney, and more recently Klinger et al. (arXiv:2603.20099).
We report on recent progress regarding the chiral condensate distribution and the possibility of calculating the zeros using Tensor Renormalization Group methods.

Presentation materials

lattice26meurice.pdf