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T: Fachverband Teilchenphysik

T 41: Invited Overview Talks III

T 41.3: Invited Overview Talk

Mittwoch, 18. März 2026, 12:00–12:30, AudiMax

Gravitational waves from cosmological phase transitions. — •Thomas Konstandin — Notkestraße 85, 22607 Hamburg, Germany

First-order cosmological phase transitions are an intriguing source of gravitational waves. Depending on the temperature of the phase transition, the gravitational wave spectrum can be observed by pulsar timing arrays, space-based interferometers or ground-based experiments. Quantifying the produced power spectrum is however quite challenging, and non-linear hydrodynamics and turbulence are essential for robust predictions. The aim of the presentation is to summarize the history of the field and also discuss some recent developments.

Keywords: phase transitions; gravitational waves; Higgs sector