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arXiv · 1607.07471

Lorentzian Condition in Holographic Cosmology

Thomas Hertog·Ruben Monten·Yannick Vreys
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Abstract

We derive a sufficient set of conditions on the Euclidean boundary theory in dS/CFT for it to predict classical, Lorentzian bulk evolution at large spatial volumes. Our derivation makes use of a canonical transformation to express the bulk wave function at large volume in terms of the sources of the dual partition function. This enables a sharper formulation of dS/CFT. The conditions under which the boundary theory predicts classical bulk evolution are stronger than the criteria usually employed in quantum cosmology. We illustrate this in a homogeneous isotropic minisuperspace model of gravity coupled to a scalar field in which we identify the ensemble of classical histories explicitly.

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Thomas Hertog, Ruben Monten, Yannick Vreys. 2016-07-25. Lorentzian Condition in Holographic Cosmology. https://doi.org/10.1007/jhep01(2017)060

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