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Résumé |
Entanglement entropy is a very important quantity in holography, nevertheless it is only a measure of the
total
amount of entanglement between two complementary subsystems in a global pure state. A more detailed
knowledge about the pattern of entanglement is essential for a deeper understanding of the relation
between
bulk geometry and quantum information in the boundary theory. I will discuss how negativities and other
measures can be used in this context focusing in particular on qubit systems for which a classification of
possible entanglement structures is available.
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