摘要
在高密情况下考虑了夸克间弱的耦合 ,直接应用微扰计算得到的热力学势计算了奇异夸克物质 (SQM)的体粘滞系数 ,发现介质效应使SQM的粘滞性提高
Taking the thermodynamics potential for cold dense QCD in perturbation theory to the first order in coupling constant account, we calculate the bulk viscosity of strange quark matter(SQM), and find that the result is approximately 10 2 times than that of the ideal quark gas. In comparison with quasi-particle description model, we have the same result in order of magnitude. It is useful to improve the theory prediction that to apply the result to the calculation of the rotation speed limit, which is favorable for the explanation of the observation.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第3期258-261,共4页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 ( 10 3 73 0 0 7)资助~~
