Gibbons-Maeda dilaton時(shí)空中Klein-Gordon方程的近似解

Gibbons-Maeda dilaton時(shí)空中Klein-Gordon方程的近似解

摘要：本文從Gibbons-Maeda dilaton黑洞背景時(shí)空中標量波所滿(mǎn)足的Klein-Gordon方程出發(fā)，利用分離變量法得到了Klein-Gordon方程的角向方程和徑向方程。角向方程的解是已知的球諧函數，重點(diǎn)是求解徑向方程。本文利用參量變換將徑向方程化為類(lèi)薛定諤方程進(jìn)行求解，忽略 后可將方程化為合流超幾何方程，其解為合流超幾何函數。最終我們得出了Gibbons-Maeda dilaton黑洞背景時(shí)空中Klein-Gordon方程的近似解。這種求解的方法對于尋求標量場(chǎng)方程的解有1定的啟發(fā)意義。

關(guān)鍵詞：Gibbons-Maeda dilaton黑洞；Klein-Gordon方程；近似解。

Approximate solution of Klein-Gordon equation in Gibbons-Maeda dilaton black hole

Abstract: In this paper, we study the solution of Klein-Gordon equation in Gibbons-Maeda dilaton black hole. We can get its angular equation and radial equation by Separation of variables, and the angular equation is a known mathematical function, its solution is in the form of function of spherical harmonics. Here we mainly study the solution of radial equation. The radial equation is transformed to Schrodinger-like equation by variable substitution. If neglect , we can transform the equation to the generalized hypergeometric equation, and its solution is the generalized hypergometric function. Hence, we can get the approximate solution of Klein-Gordon equation in Gibbons-Maeda dilaton black hole. This method is helpful for us to find the way of the solution of scalar field equation.

Key Words: Gibbons-Maeda dilaton black hole; Kein-Gordon equation; approximate solution.
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