Qubit teleportation between a memory-compatible photonic time-bin qubit and a solid-state quantum network node
Mariagrazia Iuliano (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QID/Hanson Lab)
Marie-Christine Slater (Kavli institute of nanoscience Delft, Student TU Delft)
Arian J. Stolk (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QID/Hanson Lab)
Matthew J. Weaver (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft)
Tanmoy Chakraborty (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Tittel Lab, Kavli institute of nanoscience Delft)
Elsie Loukiantchenko (Kavli institute of nanoscience Delft, Student TU Delft)
Gustavo C. do Amaral (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QID/Hanson Lab)
Nir Alfasi (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QID/Tittel Lab)
Mariya O. Sholkina (TU Delft - QN/Zandbergen Lab, Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre)
Wolfgang Tittel (Constructor University, Université de Genève)
Ronald Hanson (TU Delft - QN/Hanson Lab, TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft)
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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.
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