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arXiv · 1705.05340

The Real No-Boundary Wave Function in Lorentzian Quantum Cosmology

Juan Diaz Dorronsoro·Jonathan J. Halliwell·James B. Hartle·Thomas Hertog·Oliver Janssen
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Abstract

It is shown that the standard no-boundary wave function has a natural expression in terms of a Lorentzian path integral with its contour defined by Picard-Lefschetz theory. The wave function is real, satisfies the Wheeler-DeWitt equation and predicts an ensemble of asymptotically classical, inflationary universes with nearly-Gaussian fluctuations and with a smooth semiclassical origin.

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Juan Diaz Dorronsoro, Jonathan J. Halliwell, James B. Hartle, Thomas Hertog, Oliver Janssen. 2017-05-15. The Real No-Boundary Wave Function in Lorentzian Quantum Cosmology. https://doi.org/10.1103/physrevd.96.043505

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