Fig. 3: Quantum teleportation of a laser qubit.
From: Quantum teleportation using highly coherent emission from telecom C-band quantum dots
a Experimental schematic. An input polarisation encoded laser qubit is interfered with an X photon on a 99:1 beamsplitter. At Charlie, a Bell state measurement is performed using a polarising beamsplitter (PBS) and superconducting single-photon detectors (DH & DV). Bob then uses polarisation resolved correlations to analyse the output state in different polarisation bases at detectors (DP & DQ). b Mean fidelity coincidence map for the most significant post-selection window size of 203 ps. The peak fidelity at τC = τB = 0 is 83.6 ± 2.2%. c Individual fidelities for the six input polarisation states and the corresponding mean fidelity. The fidelity exceeds the classical limit of 2∕3 (dotted line) for each basis in the six-state teleportation protocol.
