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Looking for a bulk point
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DOI：10.1007/JHEP01(2017)013.png)
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摘要
En 中文
We consider Lorentzian correlators of local operators. In perturbation theory, singularities occur when we can draw a position-space Landau diagram with null lines. In theories with gravity duals, we can also draw Landau diagrams in the bulk. We argue that certain singularities can arise only from bulk diagrams, not from boundary diagrams. As has been previously observed, these singularities are a clear diagnostic of bulk locality. We analyze some properties of these perturbative singularities and discuss their relation to the OPE and the dimensions of double-trace operators. In the exact nonperturbative theory, we expect no singularity at these locations. We prove this statement in 1+1 dimensions by CFT methods.
Keyword:
AdS-CFT Correspondence
Conformal Field Theory
Classical Theories of Gravity
Scattering Amplitudes
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期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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