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arXiv · 1304.0385

Normal and anti-normal ordered expressions for annihilation and creation operators

J. M. Vargas-Martínez·H. Moya-Cessa
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Abstract

We give the normal and anti-normal order expressions of the number operator to the power $k$ by using the commutation relation between the annihilation and creation operators. We use those expressions to give general formulae for functions of the number operator in normal and anti-normal order.

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J. M. Vargas-Martínez, H. Moya-Cessa. 2013-04-01. Normal and anti-normal ordered expressions for annihilation and creation operators. https://arxiv.org/abs/1304.0385

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