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Quantum-state tomography for spin-l systems

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タイトル: Quantum-state tomography for spin-l systems
著者: Hofmann, Holger F. 著作を一覧する
Takeuchi, Shigeki 著作を一覧する
発行日: 2004年 4月23日
出版者: American Physical Society
誌名: Physical Review A
巻: 69
開始ページ: 042108
出版社 DOI: 10.1103/PhysRevA.69.042108
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.
Rights: Copyright © 2004 American Physical Society
Relation (URI):
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 竹内 繁樹


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