Battista Emmanuele, De Falco Vittorio
Department of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.
Scuola Superiore Meridionale, Largo San Marcellino 10, 80138 Napoli, Italy.
Eur Phys J C Part Fields. 2022;82(7):628. doi: 10.1140/epjc/s10052-022-10558-9. Epub 2022 Jul 22.
The generation of gravitational waves from a post-Newtonian source endowed with a quantum spin, modeled by the Weyssenhoff fluid, is investigated in the context of Einstein-Cartan theory at the first post-Newtonian level by resorting to the Blanchet-Damour formalism. After having worked out the basic principles of the hydrodynamics in Einstein-Cartan framework, we study the Weyssenhoff fluid within the post-Newtonian approximation scheme. The complexity of the underlying dynamical equations suggests to employ a discrete description via the point-particle limit, a procedure which permits the analysis of inspiralling spinning compact binaries. We then provide a first application of our results by considering binary neutron star systems.
在爱因斯坦 - 嘉当理论的背景下，借助布兰切特 - 达穆尔形式体系，在首个后牛顿层级研究了由魏森霍夫流体建模的、具有量子自旋的后牛顿源产生引力波的情况。在阐述了爱因斯坦 - 嘉当框架下流体动力学的基本原理之后，我们在后牛顿近似方案内研究魏森霍夫流体。基础动力学方程的复杂性表明通过点粒子极限采用离散描述，这一过程允许分析螺旋进动的旋转致密双星。然后，我们通过考虑双中子星系统给出了我们结果的首次应用。
