论文标题
探测暗能量与深色物质之间的相互作用与未来快速无线电爆发观测
Probing the interaction between dark energy and dark matter with future fast radio burst observations
论文作者
论文摘要
相互作用的暗能量（IDE）场景假设暗能量与冷暗物质之间存在直接相互作用，但是这种相互作用很难被当前数据严格限制。将来的射电望远镜将大量看到快速无线电爆发（FRB），因此它们有可能成为有希望的低红移宇宙学探针。在这项工作中，我们研究了未来FRB在四个现象学IDE模型中约束无量纲耦合参数$β$的能力。如果我们修复了FRB属性，则比当前宇宙微波背景数据在IDE模型中，大约$ 10^5 $ frb的数据可以给出$β$的限制，其相互作用与深色能量的能量密度成正比。在所有IDE模型中，大约$ 10^6 $ frb的数据可以将$β$的绝对错误达到低于$ 0.10 $，这为精确度量$β$的方法提供了一种方法。共同限制FRB性质和宇宙学参数将使$β$的约束误差增加约0.5-2。
Interacting dark energy (IDE) scenario assumes that there exists a direct interaction between dark energy and cold dark matter, but this interaction is hard to be tightly constrained by the current data. Fast radio bursts (FRBs) will be seen in large numbers by future radio telescopes, and thus they have potential to become a promising low-redshift cosmological probe. In this work, we investigate the capability of future FRBs of constraining the dimensionless coupling parameter $β$ in four phenomenological IDE models. If we fix the FRB properties, about $10^5$ FRB data can give constraints on $β$ tighter than the current cosmic microwave background data in the IDE models with the interaction proportional to the energy density of dark energy. In all the IDE models, about $10^6$ FRB data can achieve the absolute errors of $β$ to less than $0.10$, providing a way to precisely measure $β$ by only one cosmological probe. Jointly constraining the FRB properties and cosmological parameters would increase the constraint errors of $β$ by a factor of about 0.5-2.
