A further analysis of the energy-momentum for a system of point particles and for a perfect fluid in finite volume

10th Biennial Conference on Classical and Quantum Relativistic Dynamics of Particles and Fields

Ares De Parga, G.^1 ; Gonzalez-Narvaez, R.E.^1

Dpto. de Física, Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, U. P. Adolfo López Mateos, Zacatenco, México City

C.P. 07738, Mexico^1

关键词: Covariant;    Energy momentum;    Perfect fluid;    Point particle;    Relativistic thermodynamics;    Simple analysis;    Thermodynamic quantities;    Total energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/845/1/012002/pdf
DOI  :  10.1088/1742-6596/845/1/012002

来源: IOP

【 摘 要 】

A simple analysis of the total energy-momentum of a system of non-interacting point particles shows that it represents a well defined 4-vector. A generalization for interacting charged particles including the self-forces is developed. A comparison between a system of point particles in an infinite volume and the perfect fluid in a finite volume is done. The finite volume case is analyzed in order to define an energy-momentum depending on the notion of instantaneity for a perfect fluid. The relativistic transformations of thermodynamic quantities are defined in a covariant form leading to a redefined relativistic Thermodynamics.