Quantum discord of cosmic inflation: Can we show that CMB anisotropies are of quantum-mechanical origin?

@inproceedings{Martin2016QuantumDO,
  title={Quantum discord of cosmic inflation: Can we show that CMB anisotropies are of quantum-mechanical origin?},
  author={J{\'e}r{\^o}me Martin and Vincent Vennin},
  year={2016}
}
  • Jérôme Martin, Vincent Vennin
  • Published 2016
  • Physics
  • We investigate the quantumness of primordial cosmological fluctuations and its detectability. The quantum discord of inflationary perturbations is calculated for an arbitrary splitting of the system, and shown to be very large on super-Hubble scales. This entails the presence of large quantum correlations, due to the entangled production of particles with opposite momentums during inflation. To determine how this is reflected at the observational level, we study whether quantum correlators can… CONTINUE READING

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