Dark Holograms and Gravitational Waves

Understand

Spectra of stochastic gravitational waves (GW) generated in cosmological first-order phase transitions are computed within strongly correlated theories with a dual holographic description.

• The theories are mostly used as models of dark sectors.
• In particular, we consider the so-called Witten-Sakai-Sugimoto model, a $SU(N)$ gauge theory coupled to different matter fields in both the fundamental and the adjoint representations.
• The model has a well-known top-down holographic dual description which allows us to perform reliable calculations in the strongly coupled regime.