Quantum-state tomography for spin-l systems

Hofmann, Holger F.; Takeuchi, Shigeki

Physical Review A, 2004, 69, 042108

Permalink : https://hdl.handle.net/2115/5556

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アクセス権	open access
URI	https://hdl.handle.net/2115/5556
タイトル	Quantum-state tomography for spin-l systems
著者	著者名 Hofmann, Holger F.
著者	e-Rad_Researcher 80321959 著者名 Takeuchi, Shigeki 竹内, 繁樹
言語	英語
発行日	2004-04-23
出版者	American Physical Society
収録物名	Physical Review A
巻(号)	69
ページ	042108
抄録	We show that the density matrix of a spin-l system can be described entirely in terms of the measurement statistics of projective spin measurements along a minimum of 4l + 1 different spin directions. It is thus possible to represent the complete quantum statistics of any N-level system within the spherically symmetric three-dimensional space defined by the spin vector. An explicit method for reconstructing the density matrix of a spin-1 system from the measurement statistics of five nonorthogonal spin directions is presented and the generalization to spin-l systems is discussed.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2004 American Physical Society
PISSN	1050-2947
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevA.69.042108