Statut | Confirmé |
Série | LPENS-MDQ |
Domaines | cond-mat |
Date | Lundi 18 Janvier 2016 |
Heure | 13:30 |
Institut | LPA |
Salle | Conf IV, 24 rue Lhomond |
Nom de l'orateur | Leghtas |
Prenom de l'orateur | Zaki |
Addresse email de l'orateur | leghtas [at] gmail [dot] com |
Institution de l'orateur | Mines ParisTech / LPA ENS |
Titre | Confining the state of light to a quantum manifold by engineered two-photon loss |
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. |
Numéro de preprint arXiv | |
Commentaires | |
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