ABASH 发表于 2025-3-28 15:16:20
http://reply.papertrans.cn/48/4743/474242/474242_41.png结果 发表于 2025-3-28 20:06:43
Relativistic Two-Fluid Formalism, answer to this question is not obvious because the two-fluid formalism developed for superfluid helium is manifestly non-relativistic, as one can see for example from the use of mass densities .., ... Since mass is not a conserved quantity, these densities have to be generalized in a relativistic framework.Initiative 发表于 2025-3-29 02:31:14
http://reply.papertrans.cn/48/4743/474242/474242_43.png