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astro-ph.CO2024
On the full non-Gaussian Surprise statistic and the cosmological concordance between DESI, SDSS and Pantheon+
Pedro Riba Mello, Miguel Quartin, Bjoern Malte Schaefer +1
With the increasing precision of recent cosmological surveys and the discovery of important tensions within the CDM paradigm, it is becoming more and more important to develop t…
astro-ph.CO2024
Bayesian distances for quantifying tensions in cosmological inference and the surprise statistic
Benedikt Schosser, Pedro Riba Mello, Miguel Quartin +1
Tensions between cosmological parameters derived through different channels can be a genuine signature of new physics that CDM as the standard model is not able to reproduce, in…
gr-qc2024
Friedmann-Robertson-Walker spacetimes from the perspective of geometric algebra
Pablo Banon Perez, Bjoern Malte Schaefer, Maarten DeKieviet
The intention of our paper is to provide a pedagogical application of geometric algebra to a particularly well-investigated system: We formulate the geometric and dynamical propert…