论文标题
如果您陷入黑洞，如何延迟死亡并进一步了解未来
How to delay death and look further into the future if you fall into a black hole
论文作者
论文摘要
在本说明中，我们提出了附近和黑洞内运动特性的教学插图。我们讨论瞬时的冲动如何改变径向落入Schwarzschild Black Hole的物体的寿命，从而奇异。实际上，在地平线上度过的适当时间的众所周知的上限需要无限强大的踢。我们计算适当的时间间隔（被视为落下观察者的个人生命周期），直到与奇异性接触，以及Lemaître框架中的时间间隔（这反映了落下的观察者可以看出的外部世界的未来），对于落下身体接收到的踢脚的不同值。我们讨论了具有有限功率的引擎增加两个时间间隔的理想策略。 此示例适用于专门针对一般相对论和相关天体物理学的大学生的大学研讨会。
In this note, we present a pedagogical illustration of peculiar properties of motion in the vicinity and inside black holes. We discuss how a momentary impulse can modify the lifetime of an object radially falling into a Schwarzschild black hole down to singularity. The well known upper limit for a proper time spent within a horizon, in fact, requires an infinitely powerful kick. We calculate the proper time interval (perceived as personal lifetime of a falling observer) till the contact with the singularity, as well as the time interval in the Lemaître frame (which reflects how far into the future of the outer world a falling observer can look), for different values of the kick received by the falling body. We discuss the ideal strategy to increase both time intervals by the engine with a finite power. This example is suitable for university seminars for undergraduate students specializing in General Relativity and related astrophysical subjects.
