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http://dx.doi.org/10.3938/jkps.73.1596

Quantum Entanglement of Dark Matter  

Lee, Jae-Weon (Department of Renewable Rnergy, Jungwon University)
Publication Information
Journal of the Korean Physical Society / v.73, no.10, 2018 , pp. 1596-1602 More about this Journal
Abstract
We suggest that the dark matter in the universe has quantum entanglement if the dark matter is a Bose-Einstein condensation of ultra-light scalar particles. In this theory, any two regions of a galaxy are quantum entangled due to the quantum nature of the condensate. We calculate the entanglement entropy of a typical galactic halo, which turns out to be at least O(ln(M/m)), where M is the mass of the halo and m is the mass of a dark matter particle. The entanglement can be inferred from the rotation curves of the galaxy or the interference patterns of the dark matter density.
Keywords
Dark matter; BEC; Entanglement; Galactic halos;
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