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23–26 Sept 2025
DESY Hamburg
Europe/Berlin timezone

High-Frequency Gravitational Waves from Phase Transitions in Nascent Neutron Stars

25 Sept 2025, 17:24
18m
Bldg. 1b, seminar room 3 (DESY)

Bldg. 1b, seminar room 3

DESY

Cosmology & Astroparticle Physics Parallel Sessions Thursday Cosmo 1

Speaker

Katarina Bleau

Description

During a neutron star's formation in a supernova, its core may undergo a phase transition into deconfined quark matter. The phase transition would likely be first-order, proceeding by bubble nucleation. We show that such a phase transition would be accompanied by the emission of high-frequency gravitational waves (MHz band), which could be within reach of proposed gravitational wave detectors. Therefore, these detectors provide a unique opportunity for testing quantum chromodynamics in a high pressure and density regime that is otherwise theoretically and experimentally inaccessible.

Primary authors

Jiheon Lee (KAIST) Joachim Kopp (CERN and JGU Mainz) Jorinde van de Vis (T (Cosmology)) Katarina Bleau

Presentation materials