2007/03/15 by Basil A. Sa'd, Basil A. Sa’d, I. A. Shovkovy +2 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Formalism (music) #High-Energy Particle Collisions Research #Particle physics #Physics #Pulsars and Gravitational Waves Research #Quark #Strange quark #Thermodynamics #Viscosity #Volume viscosity #astro-ph #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.75.125004
published as Phys.Rev.D75:125004,2007 · 9 pages, 4 figures, v2: revised figures, no change in results
arxiv created 2007/03/15 · openalex publication_date 2007/06/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A general formalism for calculating the bulk viscosity of strange quark matter is developed. Contrary to the common belief that the nonleptonic processes alone give the dominant contribution to the bulk viscosity, the inclusion of the Urca processes is shown to play an important role at intermediate densities when the characteristic r-mode oscillation frequencies are not too high. The interplay of nonleptonic and Urca processes is analyzed in detail.