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arXiv 0901.4964math-phmath.MP
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任意阶奇偶非谐振子的统一处理

Unified Treatment of Even and Odd Anharmonic Oscillators of Arbitrary Degree

U. D. Jentschura, A. Surzhykov, J. Zinn-Justin

摘要:

本文给出了任意奇、偶阶非谐振子的统一处理方法,包括高阶修正。我们的方法是基于色散关系,它利用了PT对称性的奇位虚耦合参数,广义量子化条件,考虑到瞬子的贡献。我们发现了一些明确的新结果,包括一般行为的高阶微扰理论的任意水平的奇非谐振子,和subleading修正的激发态的衰变宽度奇的潜力,这是数值上显着的。

英文摘要:

We present a unified treatment, including higher-order corrections, of anharmonic oscillators of arbitrary even and odd degree. Our approach is based on a dispersion relation which takes advantage of the PT-symmetry of odd potentials for imaginary coupling parameter, and of generalized quantization conditions which take into account instanton contributions. We find a number of explicit new results, including the general behaviour of large-order perturbation theory for arbitrary levels of odd anharmonic oscillators, and subleading corrections to the decay width of excited states for odd potentials, which are numerically significant.

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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