标题： 黑洞作为基本弦：比较标量的吸收 显示英文标题

标题： Black Holes as Fundamental Strings: Comparing the Absorption of Scalars

摘要： Horowitz 和 Polchinski 最近提出的“对应原理”提供了一种具体的方法，可以将（其中包括）带电黑洞与基本弦联系起来，并正确匹配它们的熵。我们通过研究近极值黑洞对中性、最小耦合标量吸收率中的灰体因子，进一步检验了这一对应关系。令人惊讶的是，结果通常与弱耦合弦的吸收情况不一致。尽管这并不能否定该对应关系，但它表明在黑洞参数空间的这一区域内，该对应关系可能并不简单。 显示英文摘要

摘要： The recently proposed ``correspondence principle'' of Horowitz and Polchinski provides a concrete means to relate (among others) black holes with electric NS-NS charges to fundamental strings and correctly match their entropies. We test further this correspondence by examining the greybody factors in the absorption rates of neutral, minimally coupled scalars by a near extremal black hole. Perhaps surprisingly, the results disagree in general with the absorption by weakly coupled strings. Though this does not disprove the correspondence, it indicates that it might not be simple in this region of the black hole parameter space.