arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/0507206quant-ph
收藏

玻色子正规序的组合学及其应用

Combinatorics of boson normal ordering and some applications

P. Blasiak

摘要:

给出了两类算子幂和指数的正规序问题的解决方法。第一个由玻色子弦和更一般的齐次多项式,而第二个处理运营商线性的创建或湮灭运营商之一。这两个解决方案推广贝尔和斯特灵数出现在数运营商的情况下。我们使用先进的组合分析,提供封闭形式的表达式,生成函数,递归等分析是基于Dobienski型关系和本底演算方法。作为这个框架的一个例子,我们指出了它在广义相干态的构造、算符演算和变形玻色子的有序化中的应用。

英文摘要:

We provide the solution to the normal ordering problem for powers and exponentials of two classes of operators. The first one consists of boson strings and more generally homogeneous polynomials, while the second one treats operators linear in one of the creation or annihilation operators. Both solutions generalize Bell and Stirling numbers arising in the number operator case. We use the advanced combinatorial analysis to provide closed form expressions, generating functions, recurrences, etc. The analysis is based on the Dobiński-type relations and the umbral calculus methods. As an illustration of this framework we point out the applications to the construction of generalized coherent states, operator calculus and ordering of deformed bosons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑