Onset of symmetry breaking by the functional RG method

V. Pangon, S. Nagy, J. Polonyi, K. Sailer

Research output: Contribution to journalArticle

13 Citations (Scopus)


A numerical algorithm is used to solve the bare and the effective potential for the scalar φ4 model in the local potential approximation. An approximate dynamical Maxwell-cut is found which reveals itself in the degeneracy of the action for modes at some scale. This result indicates that the potential develop singular field dependence as far as one can see it by an algorithm of limited numerical accuracy.

Original languageEnglish
Pages (from-to)1327-1345
Number of pages19
JournalInternational Journal of Modern Physics A
Issue number7-8
Publication statusPublished - Mar 30 2011



  • Renormalization group
  • condensation
  • phase transition

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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