Qubit teleportation between a memory-compatible photonic time-bin qubit and a solid-state quantum network node

Autor: Mariagrazia Iuliano, Marie-Christine Slater, Arian J. Stolk, Matthew J. Weaver, Tanmoy Chakraborty, Elsie Loukiantchenko, Gustavo C. do Amaral, Nir Alfasi, Mariya O. Sholkina, Wolfgang Tittel, Ronald Hanson
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: npj Quantum Information, Vol 10, Iss 1, Pp 1-7 (2024)
Druh dokumentu: article
ISSN: 2056-6387
DOI: 10.1038/s41534-024-00910-0
Popis: Abstract We report on a quantum interface linking a diamond NV center quantum network node and 795nm photonic time-bin qubits compatible with Thulium and Rubidium quantum memories. The interface makes use of two-stage low-noise quantum frequency conversion and waveform shaping to match temporal and spectral photon profiles. Two-photon quantum interference shows high indistinguishability between converted 795nm photons and the native NV center photons. We use the interface to demonstrate quantum teleportation including real-time feedforward from an unbiased set of 795nm photonic qubit input states to the NV center spin qubit, achieving a teleportation fidelity well above the classical bound. This proof-of-concept experiment shows the feasibility of interconnecting different quantum network hardware.
Databáze: Directory of Open Access Journals