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arXiv: 1906.05146
handle: 10261/233235 , 20.500.14468/12049 , 10486/703617
We explore the connection between the area law for entanglement and geometry by representing the entanglement entropies corresponding to all $2^N$ bipartitions of an $N$-party pure quantum system by means of a (generalized) adjacency matrix. In the cases where the representation is exact, the elements of that matrix coincide with the mutual information between pairs of sites. In others, it provides a very good approximation, and in all the cases it yields a natural {\em entanglement contour} which is similar to previous proposals.Moreover, for one-dimensional conformal invariant systems, the generalized adjacency matrix is given by the two-point correlator of an {\em entanglement current} operator. We conjecture how this entanglement current may give rise to a metric entirely built from entanglement.
13 pages, 11 figures, close to the published version
Adjacency Matrices, Quantum Physics, Condensed Matter - Strongly Correlated Electrons, Conformal Field Theory, Strongly Correlated Electrons (cond-mat.str-el), Física, FOS: Physical sciences, CFT, Quantum Physics (quant-ph), Entanglement Entropy
Adjacency Matrices, Quantum Physics, Condensed Matter - Strongly Correlated Electrons, Conformal Field Theory, Strongly Correlated Electrons (cond-mat.str-el), Física, FOS: Physical sciences, CFT, Quantum Physics (quant-ph), Entanglement Entropy
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