Finding Dirac Spin Effect in NUT Spacetime

在现在的学习，我们对在膨胀和旋转坚果 spacetime 发现一个迪拉克粒子的旋转领前感兴趣。有坚定的二功能的四个经由并列转变被用于严肃的 teleparallel 理论的领域方程。向量，轴向量并且扭转张肌的张肌部分被获得。我们发现向量部分在光线并且方向。当时，轴向量的扭转沿着 r 方向它的另外的部件沿着和方向到处消失。与迪拉克纺纱连接的向量也被评估了。

In the present study, we are interested in finding the spin precession of a Dirac particle in expanding and rotating NUT spaeetime. A tetrad with two functions to be determined is applied to the field equation of the teleparallel theory of gravity via a coordinate transformation. The vector, the axial-vector and the tensor parts of the torsion tensor are obtained. We found that the vector parts are in the radial and Ф-directions. The axial-vector torsion is along r-direction while its other components along θ and oh-directions vanish everywhere. The vector connected with Dirac spin has been evaluated as well.