Exact solutions for the motion of spinning massive particles in conformally flat spacetimes

19th Chilean Physics Symposium 2014

Asenjo, Felipe A.^1 ; Hojman, Sergio A.^1,2,3,4

Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Santiago, Chile^1

Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Chile^2

Departamento de Física, Facultad de Ciencias, Universidad de Chile, Santiago, Chile^3

Centro de Recursos Educativos Avanzados, CREA, Santiago, Chile^4

关键词: Exact solution;    Lagrangian formulations;    Massive particles;    Momentum vectors;    Superluminal;    Test particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/720/1/012011/pdf
DOI  :  10.1088/1742-6596/720/1/012011

来源: IOP

【 摘 要 】

The motion of massive spinning test particles (tops) on gravitational backgrounds is studied based on a Lagrangian formulation developed some forty years ago. In particular, the (non-geodesical) equations of motions on some conformally flat spacetimes are solved exactly. Since tops follow non-geodesical paths, velocity and momentum vectors are, in general, non- paralell. Some peculiar features such as superluminal motion are exhibited and discussed in some detail.