Inferring Fundamental Spacetime Symmetries with Gravitational-Wave Memory

From LISA to the Einstein Telescope

verfasst von

Boris Goncharov, Laura Donnay, Jan Harms

Abstract

We revisit gravitational wave (GW) memory as the key to measuring spacetime symmetries, extending beyond its traditional role in GW searches. In particular, we show how these symmetries may be probed via displacement and spin memory observations, respectively. We further find that the Einstein Telescope's (ET) sensitivity enables constraining the strain amplitude of a displacement memory to 2% and that of spin memory to 22%. Finally, we point out that neglecting memory could lead to an overestimation of measurement uncertainties for parameters of binary black hole (BBH) mergers by about 10% in ET.

Organisationseinheit(en)

Institut für Gravitationsphysik

Externe Organisation(en)

Gran Sasso Science Institute
Istituto Nazionale di Fisica Nucleare (INFN)
Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
Scuola Internazionale Superiore di Studi Avanzati

Typ

Artikel

Journal

Physical review letters

Band

132

Anzahl der Seiten

7

ISSN

0031-9007

Publikationsdatum

13.06.2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2310.10718 (Zugang: Offen)
https://doi.org/10.1103/PhysRevLett.132.241401 (Zugang: Geschlossen)