| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevLett.108.070402 |
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| Auteur | Rechercher : Lundeen, J.S.1; Rechercher : Bamber, C.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
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| Format | Texte, Article |
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| Sujet | Density matrix; Direct measurement; In-situ; Mixed state; Operational definition; Quantum state; Weak measurements; Measurements; Quantum optics; Quantum theory |
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| Résumé | Recent work by Lundeen et al. directly measured the wave function by weakly measuring a variable followed by a normal (i.e., "strong") measurement of the complementary variable. We generalize this method to mixed states by considering the weak measurement of various products of these observables, thereby providing the density matrix an operational definition in terms of a procedure for its direct measurement. The method only requires measurements in two bases and can be performed in situ, determining the quantum state without destroying it. © 2012 American Physical Society. |
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| Date de publication | 2012 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21269506 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 80f0c646-4dab-4aeb-bf05-8897d1d06d11 |
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| Enregistrement créé | 2013-12-12 |
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| Enregistrement modifié | 2020-04-21 |
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