On the simultaneous measurement of spin components using spin-1/2 meters: Naimark embedding and projections |
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Authors: | Robert Y. Levine Robert R. Tucci |
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Affiliation: | (1) MIT Lincoln Laboratory Lexington, 02173-0073, Massachusetts |
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Abstract: | Measurements involving spin-1/2 meters which result in the simultaneous measurement of spin components are described. The spin analoge of the Arthur-Kelly experiment is contrasted with a simultaneous measurement which interacts with the system. Naimark extensions are constructed and Bloch state projection properties are discussed for each case. The theory is extended to squeezed angular momentum measurement. |
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