Echo of the Dark: gravitational waves from dark SU(3) Yang-Mills theory

Understand

We analyze the phase transition in improved holographic QCD to obtain an estimate of the gravitational wave signal emitted in the confinement transition of a pure SU(3) Yang-Mills dark sector.

• We derive the effective action from holography and show that the energy budget and duration of the phase transition can be calculated with minor errors.
• These are used as input to obtain a prediction of the gravitational wave signal.
• To our knowledge, this is the first computation of the gravitational wave signal in a holographic model designated to match lattice data on the thermal properties of pure Yang-Mills.