标题： 非最小耦合物质的霍金辐射来自广义二维黑洞模型 显示英文标题

标题： Hawking Radiation for Non-minimally Coupled Matter from Generalized 2D Black Hole Models

摘要： 众所周知，广义相对论的球对称约化（SSG）会导致非最小耦合标量物质。我们推广（并修正）了最近关于霍金辐射的结果，适用于一类与史瓦西黑洞共享标量场非最小耦合以及基本全局结构的演生子模型。讨论了这类模型（如果它们不同于SSG）固有的模糊性。然而，对于SSG，如果我们采用通常的计算方法，则会得到一个令人不安的结果：无穷远处的霍金流为负值。 显示英文摘要

摘要： It is well known that spherically symmetric reduction of General Relativity (SSG) leads to non-minimally coupled scalar matter. We generalize (and correct) recent results to Hawking radiation for a class of dilaton models which share with the Schwarzschild black hole non-minimal coupling of scalar fields and the basic global structure. An inherent ambiguity of such models (if they differ from SSG) is discussed. However, for SSG we obtain the rather disquieting result of a negative Hawking flux at infinity, if the usual recipe for such calculations is applied.