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- W4378771208 abstract "In quantum mechanics, bosonic operators are mathematical objects that are used to represent the creation ($a^dagger$) and annihilation ($a$) of bosonic particles. The natural power of a linear combination of bosonic operators represents an operator $(a^dagger x+ay)^n$ with $n$ as the exponent and $x,,y$ are the variables free from bosonic operators. The normal ordering of these operators is a mathematical technique that arranges the operators so that all the creation operators are to the left of the annihilation operators, reducing the number of terms in the expression. In this paper, we present a general expansion of the natural power of a linear combination of bosonic operators in normal order. We show that the expansion can be expressed in terms of binomial coefficients and the product of the normal-ordered operators using the direct method and than prove it using the fundamental principle of mathematical induction. We also derive a formula for the coefficients of the expansion in terms of the number of bosons and the commutation relation between the creation and annihilation operators. Our results have important applications in the study of many-body systems in quantum mechanics, such as in the calculation of correlation functions and the evaluation of the partition function. The general expansion presented in this paper provides a powerful tool for analyzing and understanding the behavior of bosonic systems, and can be applied to a wide range of physical problems." @default.
- W4378771208 created "2023-05-31" @default.
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- W4378771208 date "2023-05-29" @default.
- W4378771208 modified "2023-10-16" @default.
- W4378771208 title "General expansion of natural power of linear combination of Bosonic operators in normal order" @default.
- W4378771208 doi "https://doi.org/10.48550/arxiv.2305.18113" @default.
- W4378771208 hasPublicationYear "2023" @default.
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