3 papers
gr-qc2025
A comparison between best-fit eccentricity definitions and the standardized definition of eccentricity
Nicolas Chartier, Md Arif Shaikh, Hyung Mok Lee +1
In the absence of a unique, gauge-independent definition of eccentricity in General Relativity, there have been efforts to standardize the definition for Gravitational-Wave astrono…
astro-ph.IM2024
LtU-ILI: An All-in-One Framework for Implicit Inference in Astrophysics and Cosmology
Matthew Ho, Deaglan J. Bartlett, Nicolas Chartier +12
This paper presents the Learning the Universe Implicit Likelihood Inference (LtU-ILI) pipeline, a codebase for rapid, user-friendly, and cutting-edge machine learning (ML) inferenc…
astro-ph.CO2020
CARPool: fast, accurate computation of large-scale structure statistics by pairing costly and cheap cosmological simulations
Nicolas Chartier, Benjamin Wandelt, Yashar Akrami +1
To exploit the power of next-generation large-scale structure surveys, ensembles of numerical simulations are necessary to give accurate theoretical predictions of the statistics o…