Journal of the Korean Physical Society

Korean Physical Society (한국물리학회)
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Quantum Entanglement of Dark Matter

  • Lee, Jae-Weon (Department of Renewable Rnergy, Jungwon University)
  • Received : 2018.05.14
  • Accepted : 2018.07.06
  • Published : 2018.11.30
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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

Acknowledgement

Supported by : Jungwon University

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