Phys. Rev. C 70, 015803 (2004) [5 pages]Bulk viscosity of strange quark matter in a density-dependent quark mass model and dissipation of the r mode in strange starsReceived 15 December 2003; published 19 July 2004 We study the bulk viscosity of the strange quark matter in the density-dependent quark mass model (DDQM) under the background of self-consistent thermodynamics. The correct formula of the viscosity is derived. We also find that the viscosity in the DDQM is larger by two to three orders of magnitude than that in MIT bag model. We calculate the damping time scale due to the coupling of the viscosity and r mode. The numerical results show that the time scale cannot be shorter than 10−1 s. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.015803
DOI:
10.1103/PhysRevC.70.015803
PACS:
97.60.Jd, 12.38.Mh, 97.60.Gb
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