Majumdar A S
S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098, India.
Phys Rev Lett. 2003 Jan 24;90(3):031303. doi: 10.1103/PhysRevLett.90.031303.
We consider the evolution of primordial black holes formed during the high energy phase of the braneworld scenario. We show that the effect of accretion from the surrounding radiation bath is dominant compared to evaporation for such black holes. This feature lasts till the onset of matter (or black hole) domination of the total energy density which could occur either in the high energy phase or later. We find that the black hole evaporation times could be significantly large even for black holes with small initial mass to survive until several cosmologically interesting eras.
我们考虑了在膜世界场景的高能阶段形成的原初黑洞的演化。我们表明，对于此类黑洞，来自周围辐射浴的吸积效应相较于蒸发效应占主导地位。这一特征一直持续到物质（或黑洞）主导总能量密度的阶段开始，这可能发生在高能阶段或更晚的时候。我们发现，即使是初始质量较小的黑洞，其蒸发时间也可能非常长，足以存活到几个具有宇宙学意义的时期。
