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.
Domaines
Physique [physics]Origine | Publication financée par une institution |
---|
Loading...