论文标题
Newtonian $ n $ n $ - 韦森霍夫流体的爱因斯坦 - 卡丹理论中的问题：运动方程
First post-Newtonian $N$-body problem in Einstein-Cartan theory with the Weyssenhoff fluid: equations of motion
论文作者
论文摘要
我们通过利用Weyssenhoff Fluid作为自旋模型来得出Einstein-Cartan重力理论中$ n $体系统的运动方程。我们的方法包括执行重力源连续描述的点粒子极限。最终方程为爱因斯坦 - 卡丹模型中1pn水平上的eSuding原理的有效性提供了暗示。还讨论了与涉及宏观角动量的一般相对论动力学的类比。
We derive the equations of motion for an $N$-body system in the Einstein-Cartan gravity theory at the first post-Newtonian order by exploiting the Weyssenhoff fluid as the spin model. Our approach consists in performing the point-particle limit of the continuous description of the gravitational source. The final equations provide a hint for the validity of the effacing principle at 1PN level in Einstein-Cartan model. The analogies with the general relativistic dynamics involving the macroscopic angular momentum are also discussed.
