摘要
本文系统简洁地给出量子真空投影算符的三种基本排序形式,分别是正规排序、反正规排序和Weyl排序.由它们可以导出许多新的算符公式,在计算各种物理量时起到关键的作用.
Three kinds of ordering formulas for the vacuum projector |0><0|,i.e., normally ordered-, anti-normally ordered-and Weyl ordered-forms,are derived systematically and concisely. It is further deduced that many more operator identities play important roles in calculating various physical quantities.
引文
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