%0 Generic
%A Tchebotareva, A. (Anna)
%A Hermans, Sophie
%A Hanson, R. (Ronald)
%D 2020
%T Supporting data for Entanglement between a Diamond Spin Qubit and a Photonic Time-Bin Qubit at Telecom Wavelength
%U https://data.4tu.nl/articles/dataset/Supporting_data_for_Entanglement_between_a_Diamond_Spin_Qubit_and_a_Photonic_Time-Bin_Qubit_at_Telecom_Wavelength/12712988/1
%R 10.4121/uuid:b0b73eda-f654-49d1-a5bc-5896c8016502
%K Nonlinear optics
%K Quantum entanglement
%K Quantum optics
%X We report on the realization and verification of quantum entanglement between a nitrogen-vacancy electron spin qubit and a telecom-band photonic qubit. First we generate entanglement between the spin qubit and a 637 nm photonic time-bin qubit, followed by photonic quantum frequency conversion that transfers the entanglement to a 1588 nm photon. We characterize the resulting state by correlation measurements in different bases and find a lower bound to the Bell state fidelity of ≥0.77±0.03. This result presents an important step towards extending quantum networks via optical fiber infrastructure.
%I 4TU.Centre for Research Data