Fig. 8 | npj Quantum Information

Fig. 8

From: Private quantum computation: an introduction to blind quantum computing and related protocols

Fig. 8

Hybrid architectures combining matter qubits contained in the server with optical qubits for communication present a possible path to overcoming some of the hurdles faced by the current generation of experiments. One potential approach is to make use of trapped ions or similar matter qubits to perform the computation which can emit photons entangled with the matter system. Using the remote state preparation approach described in Section IIIC, measurements made by the client could then be used to remotely establish correlations with the matter qubits in the server sufficient to implement UBQC-like protocols. In the example depicted above the state of the matter qubits is taken to be entangled with polarization degree of the photon, however other degrees of freedom could also be used. The ability to create such entangled states between matter and photonic qubits has already been demonstrated for a number of systems.79, 80

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