Quantum entanglement in the multiverse

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3 Citations (Scopus)

Abstract

In this report, we consider cosmological implications of quantum entanglement between two causally disconnected universes in the multiverse. Supposing that our universe was initially entangled with a causally separated universe, we compute the spectrum of vacuum fluctuations of our universe. To clearly see the effect of entanglement, we compare it with the spectrum of an initially non-entangled state. It is found that, due to quantum interference, scale-dependent modulations may enter the spectrum for the case of an initially non-entangled state. We discuss that the existence of causally disconnected universes may be experimentally tested by analyzing correlators in detail.

Original languageEnglish
Article number28
JournalUniverse
Volume3
Issue number2
DOIs
Publication statusPublished - Jun 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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