Alternative representation of N \times N density matrix

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dc.creatorKryszewski, Stanislaw
dc.creatorZachcial, Mateusz
dc.date2006-02-06
dc.date.accessioned2026-07-07T07:04:15Z
dc.date.available2026-07-07T07:04:15Z
dc.descriptionWe use polarization operators known from quantum theory of angular momentum to expand the $N \times N$ dimensional density operators. Thereby, we construct generalized Bloch vectors representing density matrices. We study their properties and derive positivity conditions for any $N$. We also apply the procedure to study Bloch vector space for a qubit and a qutrit.
dc.description22 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0602065
dc.identifierhttp://arxiv.org/abs/quant-ph/0602065
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109294
dc.subjectQuantum Physics
dc.titleAlternative representation of N \times N density matrix
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