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Résumé |
Holography maps a thermal ensemble of a QFT to a black hole enabling 1pt
functions for local operators through the infall of string states inside. In the
spin-chain description, the black hole maps to a boundary state, which breaks
integrability and has many unusual features such as logarithmic entanglement
entropy or thermalization at infinite temperature. This can be confronted with
1pt function arising from D-branes, which preserve integrability and in some
cases can be computed exactly. |
