标题： 弦理论中的精确三维黑洞 显示英文标题

标题： Exact Three Dimensional Black Holes in String Theory

摘要： 一个带有负宇宙学常数的三维广义相对论黑洞解最近被找到。 我们证明了对此解的一个小改动可以得到一个弦理论的精确解。 这个黑洞（在对偶下）与之前讨论过的三维黑色弦解是等价的。 由于黑色弦是渐近平坦的，而黑洞是渐近反德西特的，这表明在三维情况下，弦不受负宇宙学常数的影响。 显示英文摘要

摘要： A black hole solution to three dimensional general relativity with a negative cosmological constant has recently been found. We show that a slight modification of this solution yields an exact solution to string theory. This black hole is equivalent (under duality) to the previously discussed three dimensional black string solution. Since the black string is asymptotically flat and the black hole is asymptotically anti-de Sitter, this suggests that strings are not affected by a negative cosmological constant in three dimensions.