Figure 12
From: Multipartite state generation in quantum networks with optimal scaling
Comparison of numerical results for generating 64 × 64 cluster states from smaller building blocks with hashing protocols using different architectures. (a) Reachable fidelities with local storage capacities of 1200 qubits for n → 100 protocols. (b) Difference in fidelity Fsg − Fbip between the shifted grid architecture Fsg and the bipartite scheme Fbip for n → 100 protocols. The red area signifies the parameter regime where the multipartite approach (A) achieves higher fidelities. The advantage of the multipartite approach for scenarios with low noise and very limited storage becomes apparent. (c) Number of output copies which can be provided with a fidelity of at least 0.9 with local storage capacities of 1200 qubits. Here the multipartite approach shows better scaling for low error rates. (d) Difference in obtainable output copies msg − mbip with a fidelity of at least 0.9 by the shifted grid architecture msg (A) and the bipartite approach mbip (B, C).
