Field Operators in Real Space

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• 作者：Lorenz S. Cederbaum
• 刊名：Journal of Physical Chemistry A
• 出版年：2016
• 出版时间：May 19, 2016
• 年：2016
• 卷：120
• 期：19
• 页码：3009-3014
• 全文大小：274K
• 年卷期：0
• ISSN：1520-5215

文摘

Field operators are widely used in many-body theory of indistinguishable particles. In this work it is shown that these operators can be represented solely in position space. Explicit expressions for the field operators in position space are given. Using the derived expression, we further show how by generalizing operators in first quantization to arbitrary particle numbers, one can directly connect to the respective operators in second quantization. A few illustrative examples are also presented.