Browsing Τμήμα Φυσικής / Department of Physics by Author "D'Elia, M."

Now showing items 1-6 of 6

    • Article  

      Change of θ dependence in 4D SU(N) gauge theories across the deconfinement transition 

      Bonati, C.; D'Elia, M.; Panagopoulos, Haralambos G.; Vicari, E. (2013)
      We study the dependence of 4D SU(N) gauge theories on the topological θ term at finite temperature T. We exploit the lattice formulation of the theory, presenting numerical results for the expansion of the free energy up ...
    • Article  

      Efficiency of the UV-filtered multiboson algorithm 

      Alexandrou, Constantia; De Forcrand, P.; D'Elia, M.; Panagopoulos, Haralambos G. (2000)
      We study the efficiency of an improved multiboson algorithm with two flavors of Wilson fermions in a realistic physical situation (β=5.60,κ=0.156 on a 163X24 lattice). The performance of this exact algorithm is compared ...
    • Article  

      Improved multiboson algorithm 

      Alexandrou, Constantia; De Forcrand, Ph; D'Elia, M.; Panagopoulos, Haralambos G. (2000)
      We compare the performance of an UV-filtered Multiboson algorithm, including a global quasi-heatbath update, to the standard Hybrid Monte Carlo algorithm in full QCD with two flavours of Wilson fermions.
    • Article  

      The relevance of center vortices 

      Alexandrou, Constantia; D'Elia, M.; De Forcrand, Ph (2000)
      We show remnants of chiral symmetry breaking in the center-projected theory. We construct and study an unambiguous definition of center vortices.
    • Article  

      The role of center vortices in QCD 

      Alexandrou, Constantia; De Forcrand, Ph; D'Elia, M. (2000)
      Center vortices are unambiguously identified after Laplacian Center Gauge fixing and their influence on confinement and chiral symmetry breaking is investigated on a sample of SU(2) configurations at zero and finite temperature.
    • Conference Object  

      θ Dependence of 4D SU(N) gauge theories at finite temperature 

      Bonati, C.; D'Elia, M.; Panagopoulos, Haralambos G.; Vicari, E. (Proceedings of Science (PoS), 2013)
      We report a study of the dependence of 4D SU(N) gauge theories on the topological θ term at finite temperature, and in particular in the large-N limit. We show that theθ dependence drastically changes across the deconfinement ...