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arXiv 1608.01110math.APmath-phmath.MP
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瑞利-薛定谔级数与Birkhoff分解

Rayleigh-Schrödinger series and Birkhoff decomposition

Jean-Christophe Novelli, Thierry Paul, David Sauzin, Jean-Yves Thibon

摘要:

我们导出了描述量子哈密顿本征值微扰的瑞利-薛定谔级数的新表达式。该方法在某种程度上接近于量子场论中所谓的维数重整化,涉及到由瑞利-薛定谔级数通常表达式中的显式完全非共振项建立起来的某些洛朗级数的伯克霍夫分解。我们的结果为量子力学中的\ff{of deriving}微扰级数提供了新的组合公式和新的方法.更一般地,我们证明了这样的分解提供解决方案的一般正规型问题的李代数。

英文摘要:

We derive new expressions for the Rayleigh-Schrödinger seriesdescribing the perturbation of eigenvalues of quantumHamiltonians. The method, somehow close to the so-called dimensionalrenormalization in quantum field theory, involves the Birkhoffdecomposition of some Laurent series built up out of explicit fullynon-resonant terms present in the usual expression of theRayleigh-Schrödinger series. Our results provide new combinational formulae and a new way \ff{of deriving} perturbation series in Quantum Mechanics. More generally we prove that such a decomposition provides solutions of general normal form problems in Lie algebras.

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。

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