文章基本信息

标题：Improving hadron creation operators on the lattice
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作者：M.J. Peardon
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2010
卷号：2010
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A new gauge-covariant smearing algorithm for quark fields is described. The method applies a low-rank operator to define the smooth fields to be used in constructing hadronic creation operators. Since the space of smooth fields is small, all elements of the reduced quark propagator can either be computed exactly or estimated efficiently. The algorithm enables arbitrary sources to be inserted in correlation functions, including multi-hadron operators. First results from the method are presented.