12 research outputs found
Monopoles and Dyons in the Pure Einstein-Yang-Mills Theory
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
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
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
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
The initial distribution of gluons at the very early times after a high
energy heavy ion collision is described by the bulk scale 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 .Comment: 34 pages, 10 figure