http://arxiv.org/abs/1510.07968

We suggest that dark matter in the universe has quantum entanglement among dark matter particles 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 dark matter particle mass.

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J. Lee

Wed, 28 Oct 15

76/79

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