Remarks on the necessity and implications of state-dependence in the black hole interior

摘要: We revisit the ``state-dependence'' of map that we proposed recently between bulk operators in interior a large anti--de Sitter black hole and boundary CFT. By refining recent versions information paradox, show this feature is necessary for CFT to successfully describe local physics behind horizon---not only single-sided holes but even eternal hole. state-dependence invisible an infalling observer who cannot differentiate these from those ordinary quantum effective field theory. Therefore does not observe any violations mechanics. resolve class potential ambiguities our construction. analyze states where entangled with another system $\mathrm{ER}=\mathrm{EPR}$ conjecture emerges construction natural precise form. comment on possible semiclassical origins state-dependence.