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May 12, 20260 citationsOpen Access

Physically Realizable Subspace of the Parametrized Post-Einsteinian Framework: Ghost-Freedom, Causality, and Computational Efficiency in Gravitational-Wave Parameter Estimation

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KCKenneth Cairampoma

Key Points

  • This research aims to identify the physically realizable subspace of the parametrized post-Einsteinian framework under specific conditions.
  • Mapped the ppE parameter space with ghost-freedom, causality, unitarity, and EFT conditions.
  • Utilized EFT-informed priors to analyze constraints and computational efficiency.
  • Analyzed data from the LIGO gravitational-wave events.
  • Identified that only ~34% of the ppE parameter space is physically realizable.
  • Implemented EFT-informed priors achieved constraints equivalent to ~3x more events.
  • Reduced computational cost by ~66%, saving ~300 MWh per GWTC-3-scale analysis campaign.

Abstract

We map the physically realizable subspace of the parametrized post-Einsteinian (ppE) framework by imposing ghost-freedom, causality, unitarity, and EFT naturalness conditions. Only ~34% of the ppE parameter space currently explored by LIGO is physically realizable. EFT-informed priors yield constraints equivalent to ~3x more events and reduce computational cost by ~66%, corresponding to ~300 MWh savings per GWTC-3-scale analysis campaign. Part II of a trilogy on the S-sector EFT

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Cite This Study

Kenneth Cairampoma (2026) studied this question.

synapsesocial.com/papers/6a02c394ce8c8c81e9640efdhttps://doi.org/10.5281/zenodo.20112079
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