Lattice effective theory and the phase transition at finite densities

Dec, 2002

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Abstract:
The transition from the hadronic phase to the phase of color-superconductivity at large densities is addressed by an effective theory which incorporates the Yang-Mills dynamics in addition to the di-quark degree of freedom. A toy version of this theory is studied by lattice simulations. A first order phase transition separates the regime of broken color-electric flux tubes from the color superconducting phase. My findings suggest that the quark and gluon liberation occurs at the same critical chemical potential.
Note:
  • 6 pages, 2 ps-figures, Talk presented at the International conference on "Strong and electro-weak matter", October 2-5, 2002; Heidelberg, Germany matter}
  • talk: Heidelberg 2002/10/02
  • gauge field theory: SU(2)
  • lattice field theory
  • critical phenomena
  • density: finite
  • color: superconductivity
  • effective Lagrangian
  • Higgs model
  • vortex: density
  • numerical calculations: Monte Carlo