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Article Dans Une Revue Optica Année : 2018

Remote preparation of continuous-variable qubits using loss-tolerant hybrid entanglement of light

Résumé

Transferring quantum information between distant nodes of a network is a key capability. This transfer can be realized via remote state preparation where two parties share entangle-ment and the sender has full knowledge of the state to be communicated. Here, we demonstrate such a process between heterogeneous nodes functioning with different information encodings, i.e., particle-like discrete-variable optical qubits and wave-like continuous-variable ones. Using hybrid entan-glement of light as a shared resource, we prepare arbitrary coherent state superpositions controlled by measurements on the distant discrete-encoded node. The remotely prepared states are fully characterized by quantum state tomography, and negative Wigner functions are obtained. This work demonstrates a novel capability to bridge discrete-and continuous variable platforms.
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hal-01868938 , version 1 (06-09-2018)

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H. Le Jeannic, A. Cavaillès, J. Raskop, K. Huang, J. Laurat. Remote preparation of continuous-variable qubits using loss-tolerant hybrid entanglement of light. Optica, 2018, 5 (8), pp.1012-1015. ⟨10.1364/OPTICA.5.001012⟩. ⟨hal-01868938⟩
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