3 years ago

How to identify zero modes for improved staggered fermions.

Jeonghwan Pak, Hwancheol Jeong, Seungyeob Jwa, Sunghee Kim, Weonjong Lee, Sunkyu Kim, Jangho Kim

We present results of the eigenvalue spectrum for the staggered Dir\"ac operator obtained using a modified Lanczos algorithm. We identify zero modes and non-zero modes. We derive the chiral Ward identity derived from the conserved $U(1)_A$ symmetry, and check it numerically. This is the first step toward construction of an improved method to identify zero modes reliably with staggered fermions.

Publisher URL: http://arxiv.org/abs/1711.01826

DOI: arXiv:1711.01826v1

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