Quantum Permutation Matrices

Moritz Weber ()
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Moritz Weber: Saarland University, Fachbereich Mathematik

A chapter in Multivariable Operator Theory, 2023, pp 875-900 from Springer

Abstract: Abstract Quantum permutations arise in many aspects of modern “quantum mathematics”. However, the aim of this article is to detach these objects from their context and to give a friendly introduction purely within operator theory. We define quantum permutation matrices as matrices whose entries are operators on Hilbert spaces; they obey certain assumptions generalizing classical permutation matrices. We give a number of examples and we list many open problems. We then put them back in their original context and give an overview of their use in several branches of mathematics, such as quantum groups, quantum information theory, graph theory and free probability theory.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-031-50535-5_32

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DOI: 10.1007/978-3-031-50535-5_32

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