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astro-ph.CO2026
Cosmic variance and ergodicity in finite systems with correlations
Dipayan Mukherjee, Syksy Rasanen
We consider the difference between ensemble and volume average in cosmology. It is known that for sufficiently weak long-range correlations the root mean square of the difference,…
astro-ph.CO2026
Capturing statistical isotropy violation with rotational averages
Vaishali R, Dipayan Mukherjee, Tarun Souradeep
Recent high precision cosmological observations have revealed several anomalies in the Cosmic Microwave Background (CMB), indicating possible violations of statistical isotropy (nS…