First post-Newtonian N-body problem in Einstein–Cartan theory with the Weyssenhoff fluid: equations of motion

Emmanuele Battista; Vittorio De Falco

doi:10.1140/epjc/s10052-022-10746-7

Titel

First post-Newtonian N-body problem in Einstein–Cartan theory with the Weyssenhoff fluid: equations of motion

Autor*in

Emmanuele Battista

Fakultät für Physik, Universität Wien

Vittorio De Falco

Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Italy

Abstract

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.

Stichwort

Physics and Astronomy (miscellaneous)Engineering (miscellaneous)

Objekt-Typ

journal article

Sprache

Englisch [eng]

Persistent identifier

phaidra.univie.ac.at/o:1673254

DOI

10.1140/epjc/s10052-022-10746-7

Erschienen in

Titel