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Statut |
Confirmé |
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Série |
LPENS-MDQ |
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Domaines |
cond-mat |
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Date |
Lundi 18 Janvier 2016 |
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Heure |
13:30 |
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Institut |
LPA |
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Salle |
Conf IV, 24 rue Lhomond |
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Nom de l'orateur |
Leghtas |
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Prenom de l'orateur |
Zaki |
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Addresse email de l'orateur |
leghtas [at] gmail [dot] com |
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Institution de l'orateur |
Mines ParisTech / LPA ENS |
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Titre |
Confining the state of light to a quantum manifold by engineered two-photon loss |
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Résumé |
Physical systems usually exhibit quantum behavior, such as superpositions and entanglement, only when they are sufficiently decoupled from a lossy environment. Paradoxically, a specially engineered interaction with the environment can become a resource for the generation and protection of quantum states. This notion can be generalized to the confinement of a system into a manifold of quantum states, consisting of all coherent superpositions of multiple stable steady states. We have confined the state of a superconducting resonator to the quantum manifold spanned by two coherent states of opposite phases and have observed a Schrödinger cat state spontaneously squeeze out of vacuum before decaying into a classical mixture. This experiment points toward robustly encoding quantum information in multidimensional steady-state manifolds. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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