Detecting the dark sector through scalar-induced gravitational waves

We investigate the evolution of cosmological scalar perturbations in the case that the background radiation is weakly coupled to a light scalar field \(\phi\). The light scalar \(\phi\) is a homogeneous background field with a large initial value. In the radiation-dominated Universe, the coupling te...

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Veröffentlicht in:	arXiv.org 2024-12
Hauptverfasser:	Xiao-Bin Sui, Liu, Jing, Xing-Yu, Yang, Rong-Gen Cai
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Background radiation Coupling coefficients Equations of state Gravitational waves Observers Perturbation Physics - Cosmology and Nongalactic Astrophysics Physics - General Relativity and Quantum Cosmology Physics - High Energy Physics - Phenomenology Radiation Relativistic particles Scalars
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