VIII International Conference "Models in Quantum Field Theory"

Runaway gravitational waves produced during first order phase transition in soft-wall holographic composite Higgs model

Oct 10, 2025, 5:40 PM

20m

Room 1, 1st floor

Session talk Section B: Quantum field theory methods in elementary particle physics Section B: Quantum field theory methods in elementary particle physics

Speaker

Andrey Shavrin (Saint Petersburg State University)

Description

A bottom-up soft-wall holographic model is used to capture the non-perturbative dynamics of a composite Higgs sector undergoing a first-order phase transition. Employing a controlled perturbative expansion in the dual 5D theory, we obtain estimations of bubble nucleation rates and other parameters of phase transition. This semi-analytic approach yields a prediction for the resulting gravitational-wave spectrum in the runaway scenario, and identifies where thin-wall and quasiclassical methods remain reliable.

Presentation materials

GW_slides_MQFT_25-2.pdf