Wick Rotation and the Positivity of Energy in Quantum Field Theory

DOI10.1093/QMATH/HAAB027zbMATH Open1471.81075arXiv2105.10161OpenAlexW3173105959MaRDI QIDQ4956661

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Publication date: 2 September 2021

Published in: (Search for Journal in Brave)

Abstract: We propose a new axiom system for unitary quantum field theories on curved space-time backgrounds, by postulating that the partition function and the correlators extend analytically to a certain domain of complex-valued metrics. Ordinary Riemannian metrics are contained in the allowable domain, while Lorentzian metrics lie on its boundary.

Full work available at URL: https://arxiv.org/abs/2105.10161

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