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First-post-Newtonian generation of gravitational waves in Einstein-Cartan theory

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arxiv 2109.01384 v2 pith:KWFFPMCB submitted 2021-09-03 gr-qc hep-th

Emmanuele Battista , Vittorio De Falco This is my paper · ORCID
classification gr-qchep-th
keywords einstein-cartangenerationgravitationalgravitational-wavemomentsorderspintheory
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In this paper we investigate the gravitational-wave generation problem at the first post-Newtonian order in the context of Einstein-Cartan theory by exploiting the Blanchet-Damour formalism. The quantum intrinsic spin carried by slowly moving, weakly stressed, weakly self-gravitating sources is described geometrically by means of the torsion tensor. We obtain the expression of the source multipole moments with the required accuracy. The analysis of the physical meaning of the lowest-order non-radiative moments and of the asymptotic gravitational waveform is also performed. Eventually, we draw our conclusions and estimate the order of magnitude of the spin contributions in the gravitational-wave signal.

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Cited by 4 Pith papers

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    For a Kaluza-Klein modified gravitational potential, the gravitational Aharonov-Bohm phase produces energy-level shifts that are dominated by an assumed constant correction to Newton's constant, while the claimed new ...

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