Universal acceleration and fuzzy dark matter

Author:

Edmonds Douglas1ORCID,Erlich Joshua2ORCID,Minic Djordje3ORCID,Takeuchi Tatsu3ORCID

Affiliation:

1. Department of Physics, Penn State Hazleton, Hazleton, PA 18202 USA

2. Department of Physics, William and Mary, Williamsburg, VA 23185 USA

3. Department of Physics, Virginia Tech, Blacksburg, VA 24061 USA

Abstract

Observations of velocity dispersions of galactic structures over a wide range of scales point to the existence of a universal acceleration scale [Formula: see text][Formula: see text]m/s2. Focusing on the fuzzy dark matter paradigm, which proposes ultralight dark matter with mass around [Formula: see text][Formula: see text]eV and de Broglie wavelength [Formula: see text] parsecs, we highlight the emergence of the observed acceleration scale from quantum effects in a fluid-like description of the dark matter dynamics. We then suggest the possibility of a natural connection between the acceleration scale and dark energy within the same paradigm.

Funder

The US Department of Energy

Publisher

World Scientific Pub Co Pte Ltd

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