期刊
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS
卷 20, 期 4, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0219887823500639
关键词
Stress-energy tensor; perfect fluid; Einstein's equations
This article introduces a method for obtaining the stress-energy tensor of a perfect fluid by adding a suitable term to the Einstein-Hilbert action. This term has the physical interpretation of pressure, and its variation should be understood with respect to the metric. Velocity potentials are not required in this derivation.
Here, I introduce a method to obtain the stress-energy tensor of the perfect fluid by adding a suitable term to the Einstein-Hilbert action. This term has the physical interpretation of pressure and variation should be understood with respect to the metric. In this derivation, velocity potentials are not needed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据