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arXiv · 1711.01826

How to identify zero modes for improved staggered fermions

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

We present results of the eigenvalue spectrum for the staggered Diräc 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.

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Hwancheol Jeong, Seungyeob Jwa, Jangho Kim, Sunghee Kim, Sunkyu Lee, Weonjong Lee, Jeonghwan Pak. 2017-11-16. How to identify zero modes for improved staggered fermions. https://arxiv.org/abs/1711.01826

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