A Lorentzian cure for Euclidean troubles

A. Dasgupta (AEI; Copenhagen); Golm); J. Ambjorn (NBI; J. Jurkiewicz (U. Krakow); R. Loll (U. Utrecht)

A Lorentzian cure for Euclidean troubles

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arxiv hep-th/0201104 v1 pith:ZJIBGO4S submitted 2002-01-15 hep-th

A Lorentzian cure for Euclidean troubles

J. Ambjorn (NBI , Copenhagen) , A. Dasgupta (AEI , Golm) , J. Jurkiewicz (U. Krakow) , R. Loll (U. Utrecht) This is my paper

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keywords lorentzianactionapproachcomescomingconformalconstructioncontinuum

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There is strong evidence coming from Lorentzian dynamical triangulations that the unboundedness of the gravitational action is no obstacle to the construction of a well-defined non-perturbative path integral. In a continuum approach, a similar suppression of the conformal divergence comes about as the result of a non-trivial path-integral measure.

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Cited by 1 Pith paper

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How to tame your (black hole) saddles: Lessons from the Lorentzian Gravitational Path Integral
hep-th 2026-03 accept novelty 6.0

A Lorentzian path integral contour for charged AdS black holes selects a finite subset of complex saddles via Picard-Lefschetz theory, ensuring the semiclassical sum converges at finite β.