论文标题
狭窄的彭罗斯工艺和黑洞炸弹
Confined Penrose process and black-hole bomb
论文作者
论文摘要
我们考虑了一个能量$ e_ {0}> 0 $的粒子的衰减，内部的黑洞的骨环内。在第一个衰减之后，具有能量$ e_ {1} <0 $的粒子落在黑洞上，而第二个具有$％e_ {2}> e_ {0} \，\ $的粒子朝外方向移动。它从反射外壳中反弹，然后重复该过程。对于Reissner-Nordstöm公制中带电颗粒的径向运动，结果在很大程度上取决于混凝土场景。特别是，壳内部可能无限期地生长出大量的能量，从而导致黑洞炸弹。我们还考虑在旋转的轴向对称固定黑洞的背景下具有中性颗粒的类似多重过程。我们证明，如果粒子衰减发生在转折点，在这种情况下，黑洞炸弹根本不可能。对于内在的一般点，存在黑洞炸弹的条件。它关系到衰减前后的质量和质量框架中心碎片的速度。
We consider the decay of a particle with some energy $E_{0}>0$ inside the ergosphere of a black hole. After the first decay one of particles with the energy $E_{1}<0$ falls towards a black hole while the second one with $% E_{2}>E_{0}\,\ $moves in the outward direction. It bounces back from a reflecting shell and, afterwards, the process repeats. For radial motion of charged particles in the Reissner-Nordstöm metric, the result depends strongly on a concrete scenario. In particular, an indefinitely large growth of energy inside a shell is possible that gives rise to a black-hole bomb. We also consider a similar multiple process with neutral particles in the background of a rotating axially symmetric stationary black hole. We demonstrate that, if particle decay occurs in the turning point, a black-hole bomb in this case is impossible at all. For a generic point inside the ergoregion, there is a condition for a black-hole bomb to exist. It relates the ratio of masses before and after decay and the velocity of a fragment in the center of mass frame.
