Conditional SIC-POVMs

D. Petz, Laszlo Ruppert, Andras Szanto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, we examine a generalization of the symmetric informationally complete POVMs. SIC-POVMs are the optimal measurements for full quantum tomography, but if some parameters of the density matrix are known, then the optimal SIC POVM should be orthogonal to a subspace. This gives the concept of the conditional SIC-POVM. The existence is not known in general, but we give a result in the special case when the diagonal is known of the density matrix.

Original languageEnglish
Article number6626609
Pages (from-to)351-356
Number of pages6
JournalIEEE Transactions on Information Theory
Volume60
Issue number1
DOIs
Publication statusPublished - Jan 2014

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Keywords

  • Difference set
  • POVM
  • quantum state tomography
  • quasi-orthogonality

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

Cite this

Conditional SIC-POVMs. / Petz, D.; Ruppert, Laszlo; Szanto, Andras.

In: IEEE Transactions on Information Theory, Vol. 60, No. 1, 6626609, 01.2014, p. 351-356.

Research output: Contribution to journalArticle

Petz, D, Ruppert, L & Szanto, A 2014, 'Conditional SIC-POVMs', IEEE Transactions on Information Theory, vol. 60, no. 1, 6626609, pp. 351-356. https://doi.org/10.1109/TIT.2013.2285152
Petz, D. ; Ruppert, Laszlo ; Szanto, Andras. / Conditional SIC-POVMs. In: IEEE Transactions on Information Theory. 2014 ; Vol. 60, No. 1. pp. 351-356.
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