Magnetic Component of Quark-Gluon Plasma is also a Liquid!
Apr, 2008Citations per year
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Abstract: (arXiv)
The so called magnetic scenario recently suggested in \cite{Liao_ES_mono} emphasizes the role of monopoles in strongly coupled quark-gluon plasma (sQGP) near/above the deconfinement temperature, and specifically predicts that they help reduce its viscosity by the so called ``magnetic bottle'' effect. Here we present results for monopole-(anti)monopole correlation functions from the same classical molecular dynamics simulations, which are found to be in very good agreement with recent lattice results \cite{D'Alessandro:2007su}. We show that the magnetic Coulomb coupling does run in the direction to the electric one, as expected, and it is roughly inverse of the asymptotic freedom formula for the electric one. However, as decreases to , the magnetic coupling never gets weak, with the plasma parameter always large enough (). This nicely agrees with empirical evidences from RHIC experiments, implying that magnetic objects cannot have large mean free path and should also form a good liquid with low viscosity.Note:
- 4 pages, 4 figures
- 12.38.Aw
- 14.80.Hv
- 52.27.Gr
- 12.38.Mh
- quark gluon: plasma
- monopole: correlation function
- coupling: Coulomb
- coupling: magnetic
- coupling: electric
- temperature dependence
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Figures(4)
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