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Author Kribs, David ♦ Levick, Jeremy ♦ Pereira, Rajesh
Source Paperity
Content type Text
Publisher University of Wyoming
File Format PDF ♦ HTM / HTML
Copyright Year ©2016
Abstract The intersection between the set of totally nonnegative matrices, which are of interest in many areas of matrix theory and its applications, and the set of density matrices, which provide the mathematical description of quantum states, are investigated. The single qubit case is characterized, and several equivalent conditions for a quantum channel to preserve the set in that case are given. Higher dimensional cases are also discussed.
ISSN 10813810
Learning Resource Type Article
Publisher Date 2016-05-16
Journal Electronic Journal of Linear Algebra
Volume Number 31
Issue Number 1