Goldstone excitations from spinodal instability

Details Goldstone excitations from spinodal instability Goldstone excitations from spinodal instability

2002-03-14

arxiv.org/abs/hep-ph/0203133v2

Phys.Rev. D66 (2002) 025014

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 Latex pages, 8 Figures, version accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.66.025014

The squared mass of a complex scalar field is turned dynamically into negative by its O(2)-invariant coupling to a real field slowly rolling down in a quadratic potential. The emergence of gapless excitations is studied in real time simulations after spinodal instability occurs. Careful tests demonstrate that the Goldstone modes appear almost instantly after the symmetry breaking is over, much before thermal equilibrium is established.

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