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Correlations beyond the horizon

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Abstract

It is a fundamental feature of quantum field theory that correlations between observable quantities occur over all spacetime regions. In particular, in cosmological models with horizons, such correlations will be present in regions which “lie outside of each other's horizon”. Such correlations may play an important role in processes occurring in the early universe.

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Authors and Affiliations

  1. Enrico Fermi Institute and Department of Physics, University of Chicago, 60637, Chicago, Illinois, USA

    Robert M. Wald

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  1. Robert M. Wald
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This essay received the first award from the Gravity Research Foundation, 1992—Ed.

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Wald, R.M. Correlations beyond the horizon. Gen Relat Gravit 24, 1111–1116 (1992). https://doi.org/10.1007/BF00756986

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  • DOI: https://doi.org/10.1007/BF00756986

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