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Harvard ADS: Galaxy dynamics tracing quantum cosmology beyond ΛCDM below the de Sitter scale of acceleration

Paper abstract: It is proposed that the baryonic Tully-Fisher relation (bTFR) and JWST 'Impossible galaxies' at cosmic dawn are unified in weak gravity by the trace J of the Schouten tensor below the Sitter scale of acceleration adS=cH, where c is the velocity of light and H is the Hubble parameter. Across adS, J parametrizes short-period galaxy rotation curves and fast gravitational collapse beyond the predictions of ?CDM. The sensitivity of weak gravitation to J=16R, where R is the Ricci scalar tensor, is derived in infrared gravitation from a consistent limit to quantum gravity, reducing to general relativity in the limit of a small Planck constant. For the first time, it identifies the exact relation a0=c2J/2p of the Milgrom parameter across all redshifts, accounting for the bTFR and early galaxy formation accelerated by a factor ~J1/8. It predicts a0?(0)<0 at the present epoch.