文章基本信息

标题：Comments on staggered fermions / Panel discussion
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作者：M. Creutz
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2008
卷号：2008
期号：(01)
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The rooting procedure commonly used with staggered fermions does not correctly treat nonperturbative effects associated with gauge field topology. In practice these effects are small for the physics of flavor non-singlet particles. However large uncontrolled systematic errors are expected for flavor singlet issues, such as the mass of the eta prime meson. While the relative speed of the algorithm in large scale simulations may justify its use, the method is an approximation and should not be promoted as a first principles approach to the strong interactions.