60845 20250619084222.0 doi 10.1103/PhysRevA.87.052312 sideral 81712 ART-2013-81712 eng Cardillo, A. (orcid)0000-0002-9869-4041 Information sharing in quantum complex networks 2013 Access copy available to the general public Unrestricted We introduce the use of entanglement entropy as a tool for studying the amount of information shared between the nodes of quantum complex networks. By considering the ground state of a network of coupled quantum harmonic oscillators, we compute the information that each node has on the rest of the system. We show that the nodes storing the largest amount of information are not the ones with the highest connectivity, but those with intermediate connectivity, thus breaking down the usual hierarchical picture of classical networks. We show both numerically and analytically that the mutual information characterizes the network topology. As a by-product, our results point out that the amount of information available for an external node connecting to a quantum network allows one to determine the network topology. info:eu-repo/grantAgreement/ES/DGA/FENOL-GROUP info:eu-repo/grantAgreement/ES/MINECO/FIS2011-14539-E info:eu-repo/grantAgreement/ES/MINECO/FIS2011-23526 info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.991 2013 OPTICS 12 / 83 = 0.145 2013 Q1 T1 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 9 / 33 = 0.273 2013 Q2 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Galve, F. Zueco, D. Universidad de Zaragoza (orcid)0000-0003-4478-1948 Gómez-Gardeñes, J. Universidad de Zaragoza (orcid)0000-0001-5204-1937 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 87, 5 (2013), 052312 [7 pp] Phys. rev., A At. mol. opt. phy. Physical review. A, Atomic, molecular, and optical physics 1050-2947 1407526 http://zaguan.unizar.es/record/60845/files/texto_completo.pdf Versión publicada 137185 http://zaguan.unizar.es/record/60845/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:60845 articulos driver 2025-06-19-08:41:24 ARTICLE