Dynamic renormalization-group analysis of the two-dimensional XY gauge-glass

Gun Sang Jeon, Kibeom Park, M. Y. Choi

Research output: Contribution to journalArticlepeer-review

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The two-dimensional XY gauge-glass model, generalized slightly, is investigated by means of the dynamic functional integral formulation. We consider the Langevin dynamics to construct the generating functional for the correlation and the response functions, and compute various renormalization constants, from which the renormalization group recursion relations are derived up to the second order in the vortex fugacity. In contrast to the non-random case, a second-order correction is found to appear in the renormalization equation, the analysis of which reveals, for weak randomness, an algebraically ordered phase. The dynamic exponent is found to take the simple value, two.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
JournalJournal of the Korean Physical Society
Issue number1
StatePublished - Jul 2002


  • Disordered system
  • Dynamic renormalization-group analysis
  • XY gauge-glass


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