Title: Exploring bulk viscous unified scenarios with Gravitational Waves Standard Sirens Show Chinese title

Title: 探索与引力波标准信标相结合的体粘滞统一情景

Abstract: We consider the unified bulk viscous scenarios and constrain them using the Cosmic Microwave Background observations from Planck 2018 and the Pantheon sample from Type Ia Supernovae. Then we generate the luminosity distance measurements from ${\cal O}(10^3)$ mock Gravitational Wave Standard Sirens (GWSS) events for the proposed Einstein Telescope. We then combine these mock luminosity distance measurements from the GWSS with the current cosmological probes in order to forecast how the mock GWSS data could be effective in constraining these bulk viscous scenarios. Our results show that a non-zero time dependent bulk viscosity in the universe sector is strongly preferred by the current cosmological probes and will possibly be confirmed at many standard deviations by the future GWSS measurements. We further mention that the addition of GWSS data can significantly reduce the uncertainties of the key cosmological parameters obtained from the usual cosmological probes employed in this work. Show Chinese abstract

Abstract: 我们考虑统一的体粘滞情景，并利用普朗克2018的宇宙微波背景观测和Ia型超新星的潘多拉样本对其进行约束。然后，我们从${\cal O}(10^3)$模拟的引力波标准继电器（GWSS）事件中生成光度距离测量值，用于提出的爱因斯坦望远镜。然后，我们将这些来自GWSS的模拟光度距离测量值与当前的宇宙学探针相结合，以预测这些模拟的GWSS数据在约束这些体粘滞情景方面的有效性。我们的结果表明，当前的宇宙学探针强烈偏好宇宙区域中存在非零的时间依赖性体粘滞，并可能通过未来的GWSS测量在多个标准差范围内得到确认。我们进一步指出，加入GWSS数据可以显著减少从本工作中使用的常规宇宙学探针获得的关键宇宙学参数的不确定性。