Inferring Fundamental Spacetime Symmetries with Gravitational-Wave Memory: From LISA to the Einstein Telescope

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Boris Goncharov
  • Laura Donnay
  • Jan Harms

Research Organisations

External Research Organisations

  • Gran Sasso Science Institute
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
  • Scuola Internazionale Superiore di Studi Avanzati
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Details

Original languageEnglish
Article number241401
Number of pages7
JournalPhysical review letters
Volume132
Issue number24
Publication statusPublished - 13 Jun 2024

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.

ASJC Scopus subject areas

Cite this

Inferring Fundamental Spacetime Symmetries with Gravitational-Wave Memory: From LISA to the Einstein Telescope. / Goncharov, Boris; Donnay, Laura; Harms, Jan.
In: Physical review letters, Vol. 132, No. 24, 241401, 13.06.2024.

Research output: Contribution to journalArticleResearchpeer review

Goncharov B, Donnay L, Harms J. Inferring Fundamental Spacetime Symmetries with Gravitational-Wave Memory: From LISA to the Einstein Telescope. Physical review letters. 2024 Jun 13;132(24):241401. doi: 10.48550/arXiv.2310.10718, 10.1103/PhysRevLett.132.241401
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