Inflationary Cosmology as a Probe of Primordial Quantum Mechanics

@article{Valentini2010InflationaryCA,
  title={Inflationary Cosmology as a Probe of Primordial Quantum Mechanics},
  author={Antony Valentini},
  journal={Physical Review D},
  year={2010},
  volume={82},
  pages={063513}
}
We show that inflationary cosmology may be used to test the statistical predictions of quantum theory at very short distances and at very early times. Hidden-variables theories, such as the pilot-wave theory of de Broglie and Bohm, allow the existence of vacuum states with nonstandard field fluctuations ("quantum nonequilibrium"). We show that inflationary expansion can transfer microscopic nonequilibrium to macroscopic scales, resulting in anomalous power spectra for the cosmic microwave… 

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