Non canonical polarizations of gravitational waves

Stefano Bondani; Sergio Luigi Cacciatori

doi:10.1140/epjc/s10052-023-11502-1

2024 Impact factor 4.8

Particles and Fields

Open Access

This article has an erratum: [https://doi.org/10.1140/epjc/s10052-023-11629-1]

Eur. Phys. J. C (2023) 83: 310
https://doi.org/10.1140/epjc/s10052-023-11502-1

Regular Article - Theoretical Physics

Non canonical polarizations of gravitational waves

Stefano Bondani¹^a and Sergio Luigi Cacciatori¹^,2

¹ DiSAT, Università degli Studi dell’Insubria, via Valleggio 11, 22100, Como, Italy
² INFN, via Celoria 16, 20133, Milan, Italy

^a sbondani@uninsubria.it

Received: 15 March 2023
Accepted: 9 April 2023
Published online: 20 April 2023

Abstract

We hereby propose an alternative and additional angle on the nature of gravitational waves (GWs), postulating the theoretical and experimental possibility that GWs carry a deformation of the time component of spacetime, other than the spatial one. By explicitly working outside of the transverse-traceless gauge, we propose how events with well-defined time duration, when hit by a GW, would consequently be expected to show a difference in their characteristic time, as measured from the rest frame of an outside observer, whose clock is to remain unaffected by the GW. This constitutes a theoretically viable way in the sense of detecting the passing of the wave itself and may prove relevant as a standalone method for GWs detection other than laser interferometers, or as well be implemented as a complementary but independent system of signal triggering, improving the statistical significance of existing methods. A simple but physically realistic scenario in which the appropriate conditions for the generation and detection of GWs with time dilation are met is presented, along with the conceptual design of an experimental detector.

The original online version of this article was revised: Eq. 3 reads “ $h^{0, μ}$ $h^{0, \mu }$ ”. The comma between 0 and $μ$ $\mu$ is a misprint. The correct form is “ $h^{0 μ}$ $h^{0\mu }$ ”.

An erratum to this article is available online at https://doi.org/10.1140/epjc/s10052-023-11629-1.

Copyright comment corrected publication 2023

Erratum to this article: https://doi.org/10.1140/epjc/s10052-023-11629-1

© The Author(s) 2023. corrected publication 2023. corrected publication 2023

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