12 research outputs found

    Monopoles and Dyons in the Pure Einstein-Yang-Mills Theory

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    In the pure Einstein-Yang-Mills theory in four dimensions there exist monopole and dyon solutions. The spectrum of the solutions is discrete in asymptotically flat or de Sitter space, whereas it is continuous in asymptotically anti-de Sitter space. The solutions are regular everywhere and specified with their mass, and non-Abelian electric and magnetic charges. In asymptotically anti-de Sitter space a class of monopole solutions have no node in non-Abelian magnetic fields, and are stable against spherically symmetric perturbations.Comment: 9 pages with 6 figures. To appear in the Proceedings for "The 6th International Wigner Symposium", Istanbul, Turkey, August 199

    Solution of the Boltzmann equation for gluons after a heavy ion collision

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    A non-linear Boltzmann equation describing the time evolution of a partonic system in the central rapidity region after a heavy ion collision is solved numerically. A particular model of the collinear logarithmic divergences due to small angle scattering is employed in the numerical solution. The system is followed until it reaches kinetic equilibrium where the equilibration time, temperature and chemical potential are determined for both RHIC and LHC.Comment: To appear in the proceedings for ``Strong and Electroweak matter'' (SEWM2000), Marseille, France, 14-17 June 200

    Monople and dyon solutions in the Einstein Yang-Mills theory in asymptotically AdS space

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    Regular monopole and dyon solutions to the SU(2) Einstein Yang-Mills equations in asymptotically anti-de Sitter space are discussed. A class of monopole solutions are shown to be stable against spherically symmetric linear perturbations.Comment: 6 pages, 2 figures. Proceedings from the talk given at "The eighth Canadian Conference on General Relativity and Astrophysics", McGill University, Montreal, Quebec, Canada, June 10-12 199

    Stable monopole and dyon solutions in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter Space

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    A continuum of new monopole and dyon solutions in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter space are found. They are regular everywhere and specified with their mass, and non-Abelian electric and magnetic charges. A class of monopole solutions which have no node in non-Abelian magnetic fields are shown to be stable against spherically symmetric linear perturbations.Comment: 9 pages with 5 figures. Revised version. To appear in Phys Rev Let

    From colored glass condensate to gluon plasma: equilibration in high energy heavy ion collisions

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    The initial distribution of gluons at the very early times after a high energy heavy ion collision is described by the bulk scale QsQ_s of gluon saturation in the nuclear wavefunction. The subsequent evolution of the system towards kinetic equilibrium is described by a non-linear Landau equation for the single particle distributions \cite{Mueller1,Mueller2}. In this paper, we solve this equation numerically for the idealized initial conditions proposed by Mueller, and study the evolution of the system to equilibrium. We discuss the sensitivity of our results on the dynamical screening of collinear divergences. In a particular model of dynamical screening, the convergence to the hydrodynamic limit is seen to be rapid relative to hydrodynamic time scales. The equilibration time, the initial temperature, and the chemical potential are shown to have a strong functional dependence on the initial gluon saturation scale QsQ_s.Comment: 34 pages, 10 figure
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