Complementarity in variable strength quantum non-demolition measurements
Résumé
Using a linear optic quantum gate we perform a variable strength quantum non-demolition measurement, to elucidate the role of which-path knowledge in a complementarity experiment. Specifically, we demonstrate that the entanglement created by the measurement interaction prevents an exhaustive description in terms of complementary wave-like and particle-like behaviour of a single photon in an interferometer.
Domaines
Physique Quantique [quant-ph]Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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