Matches in SemOpenAlex for { <https://semopenalex.org/work/W3201382989> ?p ?o ?g. }
- W3201382989 abstract "An important task faced by all approaches of quantum gravity is to incorporate superpositions and quantify quantum uncertainties of spacetime causal relations. We address this task in 2D. By identifying a global $Z_2$ symmetry of 1+1D quantum gravity, we show that gravitational path integral configurations come in equal amplitude pairs with timelike and spacelike relations exchanged. As a consequence, any two points are equally probable to be timelike and spacelike separated in a universe without boundary conditions. In the context of simplicial quantum gravity we identify a local symmetry of the action which shows that even with boundary conditions causal uncertainties are generically present. Depending on the boundary conditions, causal uncertainties can still be large and even maximal." @default.
- W3201382989 created "2021-09-27" @default.
- W3201382989 creator A5057469095 @default.
- W3201382989 date "2021-09-20" @default.
- W3201382989 modified "2023-09-27" @default.
- W3201382989 title "Time-space duality in 2D quantum gravity." @default.
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- W3201382989 hasPublicationYear "2021" @default.
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