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单词 Normal ordering
释义

Normal ordering

中文百科

正规序 Normal order

(重定向自Normal ordering)

在量子场论中,一组创生及湮灭算符的乘积称为是按正规序排列的,如果所有的创生算符排列在所有的湮灭算符的左侧,相应的乘积称为正规乘积。类似地可以定义反正规序,在反正规序中,所有产生算符排列在湮灭算符的右侧。

英语百科

Normal order 正规序

(重定向自Normal ordering)

In quantum field theory a product of quantum fields, or equivalently their creation and annihilation operators, is usually said to be normal ordered (also called Wick order) when all creation operators are to the left of all annihilation operators in the product. The process of putting a product into normal order is called normal ordering (also called Wick ordering). The terms antinormal order and antinormal ordering are analogously defined, where the annihilation operators are placed to the left of the creation operators.

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更新时间:2025/6/18 7:04:30