超流费米混合物中的扩散:一般形式理论
Diffusion in superfluid Fermi mixtures: General formalism
AI总结:
本文针对中子星应用,发展了超流强相互作用费米液体混合物中的扩散理论,利用Landau理论和Bogoliubov准粒子准经典动力学方程推导出包含费米液体效应的扩散系数一般表达式,为系统计算超流费米混合物的动力学系数提供了起点。
摘要:
考虑到中子星的应用,我们发展了超流强相互作用费米液体混合物中的扩散理论。利用费米液体的Landau理论,我们确定了将不同粒子种类的流、它们的动量密度以及部分熵流相互关联的矩阵。利用这些结果,并应用Bogoliubov准粒子的准经典动力学方程,我们推导了扩散系数的一般表达式,这些表达式正确纳入了所有费米液体效应,并取决于不同粒子种类之间的动量转移率。所发展的框架可作为系统计算超流费米混合物(特别是超流中子星中)扩散系数(以及其他动力学系数)的起点。
英文摘要:
With neutron star applications in mind, we developed a theory of diffusion in mixtures of superfluid, strongly interacting Fermi liquids. By employing the Landau theory of Fermi liquids, we determined matrices that relate the currents of different particle species, their momentum densities, and the partial entropy currents to each other. Using these results, and applying the quasiclassical kinetic equation for the Bogoliubov excitations, we derived general expressions for the diffusion coefficients, which properly incorporate all the Fermi liquid effects and depend on the momentum transfer rates between different particle species. The developed framework can be used as a starting point for systematic calculations of the diffusion coefficients (as well as other kinetic coefficients) in superfluid Fermi mixtures, particularly, in superfluid neutron stars.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。