Measurements of the angular homogeneity scale from DESI DR1 LRGs are consistent with Lambda-CDM mocks and prior SDSS results in all tested redshift bins.
Measuring the Homogeneity of the Universe Using Polarization Drift
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
We propose a method to probe the homogeneity of a general universe, without assuming symmetry. We show that isotropy can be tested at remote locations on the past lightcone by comparing the line-of-sight and transverse expansion rates, using the time dependence of the polarization of Cosmic Microwave Background photons that have been inverse-Compton scattered by the hot gas in massive clusters of galaxies. This probes a combination of remote transverse and parallel components of the expansion rate of the metric, and we may use radial baryon acoustic oscillations or cosmic clocks to measure the parallel expansion rate. Thus we can test remote isotropy, which is a key requirement of a homogeneous universe. We provide explicit formulas that connect observables and properties of the metric.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
In f(R, G_{\mu\nu}T^{\mu\nu}) gravity, gravitational baryogenesis produces a baryon-to-entropy ratio compatible with observations, and chi-square fits to H(z) and \mu(z) data match \Lambda CDM performance.
citing papers explorer
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Measurements of the Angular Homogeneity Scale from DESI DR1
Measurements of the angular homogeneity scale from DESI DR1 LRGs are consistent with Lambda-CDM mocks and prior SDSS results in all tested redshift bins.
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Cosmological Realization of Baryon Asymmetry in f(R, G_{\mu\nu}T^{\mu\nu}) Gravity
In f(R, G_{\mu\nu}T^{\mu\nu}) gravity, gravitational baryogenesis produces a baryon-to-entropy ratio compatible with observations, and chi-square fits to H(z) and \mu(z) data match \Lambda CDM performance.