Phase Transitions and the Perfectness of Fluids

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dc.creatorChen, Jiunn-Wei
dc.creatorHuang, Mei
dc.creatorLi, Yen-Han
dc.creatorNakano, Eiji
dc.creatorYang, Di-Lun
dc.date2007-09-21
dc.date2008-10-11
dc.date.accessioned2026-07-07T12:23:16Z
dc.date.available2026-07-07T12:23:16Z
dc.descriptionWe calculate the ratio eta/s, the shear viscosity (eta) to entropy density (s), which characterizes how perfect a fluid is, in weakly coupled real scalar field theories with different types of phase transitions. The mean-field results of the eta/s behaviors agree with the empirical observations in atomic and molecular systems such as water, He, N, and all the matters with data available in the NIST database. These behaviors are expected to be the same in N component scalar theories with an O(N) symmetry. We speculate these eta/s behaviors are general properties of fluid shared by QCD and cold atoms. Finally, we clarify some issues regarding counterexamples of the conjectured universal eta/s bound found in Refs.[16,17].
dc.description5 pages, 2 figures; Fig. 2 changed; journal version
dc.identifierhttps://arxiv.org/abs/0709.3434
dc.identifierhttp://arxiv.org/abs/0709.3434
dc.identifierPhys.Lett.B670:18-21,2008
dc.identifierdoi:10.1016/j.physletb.2008.10.024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213929
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectOther Condensed Matter
dc.subjectSoft Condensed Matter
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titlePhase Transitions and the Perfectness of Fluids
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