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Examples of conditional SIC-POVMs
Ohno, Hiromichi
Petz, Denes
© The Author(s) 2015. This article is published with open access at Springerlink.com
Quantum state tomography
SIC-POVM
Conditional SIC-POVM
The state of a quantum system is a density matrix with several parameters. The concern herein is how to recover the parameters. Several possibilities exist for the optimal recovery method, and we consider some special cases. We assume that a few parameters are known and that the others are to be recovered. The optimal positive-operator-valued measure (POVM) for recovering unknown parameters with an additional condition is called a conditional symmetric informationally complete POVM (SIC-POVM). In this paper, we study the existence or nonexistence of conditional SIC-POVMs. We provide a necessary condition for existence and some examples.
Article
QUANTUM INFORMATION PROCESSING. 14(10):3983-3999 (2015)
SPRINGER
2015-10
eng
journal article
VoR
http://hdl.handle.net/10091/00018595
https://soar-ir.repo.nii.ac.jp/records/17826
https://doi.org/10.1007/s11128-015-1085-y
10.1007/s11128-015-1085-y
1570-0755
AA11856042
QUANTUM INFORMATION PROCESSING
14
10
3983
3999
https://soar-ir.repo.nii.ac.jp/record/17826/files/Examples_of_conditional_SIC-POVMs.pdf
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