论文标题
超大的重力和巨型原始黑洞
Supermassive gravitinos and giant primordial black holes
论文作者
论文摘要
我们认为，在我们以前的作品中提出的稳定（颜色单线）超大质量的重力可以用作巨型原始黑洞的种子。假设这些种子是在以辐射为主时代的分数电荷重力杆菌的紧密结合的状态开始的，其形成得到了重力和抗gravitinos之间的引力和电力的普遍吸引力的组合（反映了它们的“几乎类似BPS）的性质）。当这种结合状态的团块结合并经历重力崩溃时，如果辐射温度超过鹰温度，所得的迷你黑孔可以避免霍金蒸发。随后，黑洞根据爱因斯坦方程的精确解决方案而演变，以作为宏观黑洞的过渡为主导的时代，质量是太阳能质量或更大的质量。这些种子在如此早期的存在提供了足够的时间来进一步吸收物质和辐射，并意味着宇宙中几乎所有大小的黑洞都存在，直到观察到的最大值。
We argue that the stable (color singlet) supermassive gravitinos proposed in our previous work can serve as seeds for giant primordial black holes. These seeds are hypothesized to start out as tightly bound states of fractionally charged gravitinos in the radiation dominated era, whose formation is supported by the universally attractive combination of gravitational and electric forces between the gravitinos and anti-gravitinos (reflecting their `almost BPS-like' nature). When lumps of such bound states coalesce and undergo gravitational collapse, the resulting mini-black holes can escape Hawking evaporation if the radiation temperature exceeds the Hawking temperature. Subsequently the black holes evolve according to an exact solution of Einstein's equations, to emerge as macroscopic black holes in the transition to the matter dominated era, with masses on the order of the solar mass or larger. The presence of these seeds at such an early time provides ample time for further accretion of matter and radiation, and would imply the existence of black holes of almost any size in the universe, up to the observed maximum.
