论文标题
用ELISA探测暗能量的前景：标准与无效诊断
Prospects of probing dark energy with eLISA: Standard versus null diagnostics
论文作者
论文摘要
来自超级黑洞二进制合并以及电磁对应物的重力波有可能在中间红移制度中对暗能量的性质散发出“光”。准确测量中间红移处的暗能量参数对于提高我们对暗能量的理解以及可能解决涉及宇宙学参数的两个紧张局势至关重要。我们在ELISA的背景下提出了Fisher矩阵的预测分析，以预测三种不同情况的误差：具有恒定和不断发展的状态方程（EOS）的非相互作用的暗能量以及具有广义参数化的相互作用的暗扇区。在所有三种情况下，我们对两个独立的形式主义进行分析，即标准的EOS形式主义和\ textit {Om}参数化，这是对幻影和非phantom区域中广泛的基准值的独立于模型的无效诊断，以对ELISA中这些诊断的前景进行比较分析。我们的分析表明，探测无效的诊断，而不是标准的EOS参数更明智，更有效，以在中间红移测量值（例如ELISA）等中间的暗能量签名。
Gravitational waves from supermassive black hole binary mergers along with an electromagnetic counterpart have the potential to shed `light' on the nature of dark energy in the intermediate redshift regime. Accurate measurement of dark energy parameters at intermediate redshift is extremely essential to improve our understanding of dark energy, and to possibly resolve a couple of tensions involving cosmological parameters. We present a Fisher matrix forecast analysis in the context of eLISA to predict the errors for three different cases: the non-interacting dark energy with constant and evolving equation of state (EoS), and the interacting dark sectors with a generalized parametrization. In all three cases, we perform the analysis for two separate formalisms, namely, the standard EoS formalism and the \textit{Om} parametrization which is a model-independent null diagnostic for a wide range of fiducial values in both phantom and non-phantom regions, to make a comparative analysis between the prospects of these two diagnostics in eLISA. Our analysis reveals that it is wiser and more effective to probe the null diagnostic instead of the standard EoS parameters for any possible signature of dark energy at intermediate redshift measurements like eLISA.
