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Testing General Relativity with Cosmological Large Scale Structure

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arxiv 2204.05601 v1 pith:RCQW4GLE submitted 2022-04-12 astro-ph.CO gr-qc

Ruth Durrer This is my paper · ORCID
classification astro-ph.COgr-qc
keywords cosmologicalequationsexampleslargeobservationsscalestructurebetter
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In this paper I investigate the possibility to test Einstein's equations with observations of cosmological large scale structure. I first show that we have not tested the equations in observations concerning only the homogeneous and isotropic Universe. I then show with several examples how we can do better when considering the fluctuations of both, the energy momentum tensor and the metric. This is illustrated with galaxy number counts, intensity mapping and cosmic shear, three examples that are by no means exhaustive.

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Cited by 1 Pith paper

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  1. Probing Gravity -- Fundamental Aspects of Metric Theories and their Implications for Tests of General Relativity

    gr-qc 2024-12 unverdicted novelty 7.0 of 10

    Gravitational wave memory is shown to arise naturally from the Isaacson backreaction formalism in general metric theories of gravity, unifying null and ordinary memory and providing a memory formula valid beyond GR.

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