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Quantum social networks
Stockholm University, Faculty of Science, Department of Physics.
2012 (English)In: Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, E-ISSN 1751-8121, Vol. 45, no 28, 285101- p.Article in journal (Refereed) Published
Abstract [en]

We introduce a physical approach to social networks (SNs) in which each actor is characterized by a yes-no test on a physical system. This allows us to consider SNs beyond those originated by interactions based on pre-existing properties, as in a classical SN (CSN). As an example of SNs beyond CSNs, we introduce quantum SNs (QSNs) in which actor i is characterized by a test of whether or not the system is in a quantum state |psi(i)>. We show that QSNs outperform CSNs for a certain task and some graphs. We identify the simplest of these graphs and show that graphs in which QSNs outperform CSNs are increasingly frequent as the number of vertices increases. We also discuss more general SNs and identify the simplest graphs in which QSNs cannot be outperformed.

Place, publisher, year, edition, pages
2012. Vol. 45, no 28, 285101- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-80285DOI: 10.1088/1751-8113/45/28/285101ISI: 000306117200003OAI: oai:DiVA.org:su-80285DiVA: diva2:556534
Note

AuthorCount:4;

Available from: 2012-09-25 Created: 2012-09-17 Last updated: 2017-12-07Bibliographically approved

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