论文标题
原始黑洞将宇宙置于停滞状态
Primordial Black Holes Place the Universe in Stasis
论文作者
论文摘要
早期宇宙学的各种场景都会引起大量原始黑洞（PBH），并具有广泛的质量。在这种情况下，PBHS的蒸发有可能将宇宙置于“停滞”的延长时期，在此期间，尽管宇宙学的扩张，物质和辐射的丰富性仍然绝对恒定。这种令人惊讶的现象会引起早期动态的新可能性，并导致这种PBH蒸发的独特签名。在本文中，我们讨论了这种暂停时期如何产生和探索其许多现象学后果，包括对通货膨胀可观察物的影响，随机重力波背景，男性生成以及暗物质和暗辐射的产生。
A variety of scenarios for early-universe cosmology give rise to a population of primordial black holes (PBHs) with a broad spectrum of masses. The evaporation of PBHs in such scenarios has the potential to place the universe into an extended period of "stasis" during which the abundances of matter and radiation remain absolutely constant despite cosmological expansion. This surprising phenomenon can give rise to new possibilities for early-universe dynamics and lead to distinctive signatures of the evaporation of such PBHs. In this paper, we discuss how this stasis epoch arises and explore a number of its phenomenological consequences, including implications for inflationary observables, the stochastic gravitational-wave background, baryogenesis, and the production of dark matter and dark radiation.
