Goldstone excitations from spinodal instability

Sz Borsányi, A. Patkos, D. Sexty

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Abstract

The squared mass of a complex scalar field is turned dynamically 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.

Original languageEnglish
Article number025014
JournalPhysical Review D
Volume66
Issue number2
DOIs
Publication statusPublished - Dec 1 2002

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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