Interuniversal entanglement in a cyclic multiverse

  title={Interuniversal entanglement in a cyclic multiverse},
  author={Salvador Robles-P{\'e}rez and Adam P. Balcerzak and Mariusz P. Da̧browski and Manuel Kraemer},
  journal={Physical Review D},
We study scenarios of parallel cyclic multiverses which allow for a different evolution of the physical constants, while having the same geometry. These universes are classically disconnected, but quantum-mechanically entangled. Applying the thermodynamics of entanglement, we calculate the temperature and the entropy of entanglement. It emerges that the entropy of entanglement is large at big bang and big crunch singularities of the parallel universes as well as at the maxima of the expansion… 
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