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

Journal Article (2024)
Authors

M. Iuliano (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Hanson Lab)

Marie-Christine Slater (Kavli institute of nanoscience Delft, Student TU Delft)

A.J. Stolk (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft)

Matthew J. Weaver (TU Delft - QID/Hanson Lab, TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft)

T. Chakraborty (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QID/Tittel Lab)

Elsie Loukiantchenko (Student TU Delft, Kavli institute of nanoscience Delft)

Gustavo Castro Amaral (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Hanson Lab)

N. Alfasi (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Tittel Lab)

M.O. Sholkina (TU Delft - QuTech Advanced Research Centre, QN/Zandbergen Lab, Kavli institute of nanoscience Delft)

Wolfgang Tittel (Constructor University, Université de Genève)

R. Hanson (TU Delft - QN/Hanson Lab, Kavli institute of nanoscience Delft, TU Delft - QID/Hanson Lab, TU Delft - QuTech Advanced Research Centre)

Research Group
QID/Hanson Lab
To reference this document use:
https://doi.org/10.1038/s41534-024-00910-0
More Info
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Publication Year
2024
Language
English
Research Group
QID/Hanson Lab
Issue number
1
Volume number
10
DOI:
https://doi.org/10.1038/s41534-024-00910-0
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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.