Quantumness tests and witnesses in the tomographic-probability representation

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dc.creatorFilippov, S. N.
dc.creatorMan'ko, V. I.
dc.date2009-02-02
dc.date.accessioned2026-07-07T13:10:25Z
dc.date.available2026-07-07T13:10:25Z
dc.descriptionIn view of the tomographic-probability representation of quantum states, we reconsider the approach to quantumness tests of a single system developed in [Alicki and Van Ryn 2008 J. Phys. A: Math. Theor. 41 062001]. For qubits we introduce a general family of quantumness witnesses which are operators depending on an extra parameter. Spin tomogram and dual spin tomographic symbols are used to study qubit examples and the test inequalities which are shown to satisfy simple relations within the framework of the standard probability theory.
dc.description9 pages, 1 figure, LaTex file, submitted to Physica Scripta
dc.identifierhttps://arxiv.org/abs/0902.0238
dc.identifierhttp://arxiv.org/abs/0902.0238
dc.identifierPhys. Scr. 79 (2009) 055007 (5pp)
dc.identifierdoi:10.1088/0031-8949/79/05/055007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229008
dc.subjectQuantum Physics
dc.titleQuantumness tests and witnesses in the tomographic-probability representation
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