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arXiv · 2405.08744

Universal Acceleration and Fuzzy Dark Matter

Douglas Edmonds·Joshua Erlich·Djordje Minic·Tatsu Takeuchi
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Abstract

Observations of velocity dispersions of galactic structures over a wide range of scales point to the existence of a universal acceleration scale $a_0\sim 10^{-10}$ m/s$^2$. Focusing on the fuzzy dark matter paradigm, which proposes ultralight dark matter with mass around $10^{-22}$ eV and de Broglie wavelength $\lambda\sim {\rm few}\times10^{2}$ 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.

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Douglas Edmonds, Joshua Erlich, Djordje Minic, Tatsu Takeuchi. 2024-05-14. Universal Acceleration and Fuzzy Dark Matter. https://arxiv.org/abs/2405.08744

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