Matches in SemOpenAlex for { <https://semopenalex.org/work/W2092509593> ?p ?o ?g. }
- W2092509593 abstract "We consider QCD at temperatures $T$ near ${T}_{c}$, where the theory deconfines. We distinguish between a ``complete'' quark-gluon plasma (QGP), where the vacuum expectation value of the renormalized Polyakov loop is near unity, essentially constant with $T$, and the ``semi''-QGP, where the loop changes strongly with $T$. Lattice simulations indicate that in QCD, there is a semi-QGP from below ${T}_{c}$ to a few times that. Using a semiclassical model, we compute the shear viscosity, $ensuremath{eta}$, to leading order in perturbation theory. We find that near ${T}_{c}$, where the expectation value of the Polyakov loop is small, that $ensuremath{eta}/{T}^{3}$ is suppressed by two powers of the loop. For heavy ions, this suggests that during the initial stages of the collision, hydrodynamic behavior at the LHC will be characterized by a shear viscosity which is significantly larger than that at RHIC." @default.
- W2092509593 created "2016-06-24" @default.
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- W2092509593 date "2008-10-27" @default.
- W2092509593 modified "2023-10-14" @default.
- W2092509593 title "Suppression of the shear viscosity in a “semi”-quark-gluon plasma" @default.
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- W2092509593 doi "https://doi.org/10.1103/physrevd.78.071501" @default.
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