Multispecies Trapped-Ion Node for Quantum Networking

Autor: I. V. Inlek, C. Crocker, Ksenia Sosnova, Martin Lichtman, Christopher Monroe
Rok vydání: 2017
Předmět:
Zdroj: Physical review letters. 118(25)
ISSN: 1079-7114
Popis: Trapped atomic ions are a leading platform for quantum information networks, with long-lived identical qubit memories that can be locally entangled through their Coulomb interaction and remotely entangled through photonic channels. However, performing both local and remote operations in a single node of a quantum network requires extreme isolation between spectator qubit memories and qubits associated with the photonic interface. We achieve this isolation and demonstrate the ingredients of a scalable ion trap network node by co-trapping $^{171}$Yb$^+\ $ and $^{138}$Ba$^+\ $ qubits, entangling the mixed species qubit pair through their collective motion, and entangling the $^{138}$Ba$^+\ $ qubits with emitted visible photons.
5 pages, 7 figures
Databáze: OpenAIRE