Probing holographic conformal field theories

Abstract:We embed relativistic quantum information protocols in AdS/CFT: an Unruh-DeWitt detector coupled to a local primary of a holographic CFT has a reduced state fixed by the universal boundary Wightman function. We find that the mana generated in a qutrit probe reads off the boundary condition of the dual bulk scalar, de-excitation spectroscopy tracks the double-trace flow through the lowest cylinder gap, and a local boundary detector is inequivalent to the HKLL representation of a bulk-local one.

v1: 7 pages. Comments are welcome. v2: "double-trace flow" and "local versus HKLL-smeared detector protocols" added

arXiv:2602.07895 [hep-th]

(or arXiv:2602.07895v2 [hep-th] for this version)

https://doi.org/10.48550/arXiv.2602.07895 Focus to learn more arXiv-issued DOI via DataCite

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