Cosmological dark energy effects from entanglement

The thorny issue of relating information theory to cosmology is here addressed by assuming a possible connection between quantum entanglement measures and observable universe. In particular, we propose a cosmological toy model, where the equation of state of the cosmological fluid, which drives the today observed cosmic acceleration, can be inferred from quantum entanglement between different cosmological epochs. In such a way the dynamical dark energy results as byproduct of quantum entanglement.

► Information theory related to cosmology. ► Entanglement measurements and relation with cosmological parameters. ► Quantum negativity to constrain cosmographic parameters. ► Measurement of quantum information effects in cosmology.