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arXiv 2011.02567math-phhep-thmath.MP
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Klein-Gordon方程的自然高阶导数推广

Natural Higher-Derivatives Generalization for the Klein-Gordon Equation

Ronaldo Thibes

摘要:

我们提出了一个自然的家庭的高阶偏微分方程推广的二阶Klein-Gordon方程。我们通过一个广义的行动的标量场,包含更高的导数项的相关模型的特征。通过考虑任意高阶幂的d 'Alembertian算子导致一个正式的无限阶偏微分方程的极限进行了讨论。一般模型是使用d 'Alembertian微分算子的指数构造的。明确计算了正则能量动量张量密度和场传播子。我们考虑同质和非同质的情况。在所有情况下都得到了经典解。

英文摘要:

We propose a natural family of higher-order partial differential equations generalizing the second-order Klein-Gordon equation. We characterize the associated model by means of a generalized action for a scalar field, containing higher-derivative terms. The limit obtained by considering arbitrarily higher-order powers of the d'Alembertian operator leading to a formal infinite-order partial differential equation is discussed. The general model is constructed using the exponential of the d'Alembertian differential operator. The canonical energy-momentum tensor densities and field propagators are explicitly computed. We consider both homogeneous and non-homogeneous situations. The classical solutions are obtained for all cases.

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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