Browsing Τμήμα Φυσικής / Department of Physics by Subject "1/N Expansion"

Now showing items 1-4 of 4

    • Article  

      The 4D SU(3) gauge theory with an imaginary θ term 

      Panagopoulos, Haralambos G.; Vicari, E. (2011)
      We study the scaling behavior of the 4D SU(3) lattice gauge theory in the presence of a θ term, by Monte Carlo simulations computing the topological properties at imaginary θ. The numerical results provide a good evidence ...
    • Article  

      Topological susceptibility of SU(N) gauge theories at finite temperature 

      Debbio, L. D.; Panagopoulos, Haralambos G.; Vicari, E. (2004)
      We investigate the large-N behavior of the topological susceptibility χ in four-dimensional SU(N) gauge theories at finite temperature, and in particular across the finite-temperature transition at Tc. For this purpose, ...
    • Article  

      θ dependence of SU (N) gauge theories 

      Del Debbio, L.; Panagopoulos, Haralambos G.; Vicari, E. (2002)
      We study the θ dependence of four-dimensional SU(N) gauge theories, for N ≥ 3 and in the large-N limit. We use numerical simulations of the Wilson lattice formulation of gauge theories to compute the first few terms of the ...
    • Article  

      θ Dependence of the spectrum of SU(N) gauge theories 

      Del Debbio, L.; Manca, G. M.; Panagopoulos, Haralambos G.; Skouroupathis, A.; Vicari, E. (2006)
      We study the θ dependence of the spectrum of four-dimensional SU(N) gauge theories, where θ is the coefficient of the topological term in the Lagrangian, for N 3 and in the large-N limit. We compute the O(θ2) terms of the ...