Quantum Networking with Superconducting Qubits

Superconducting qubits, created using Josephson-based superconducting circuits, offer a promising platform for quantum computing. These circuits have been successfully scaled to hundreds of qubits. However, further scaling of superconducting quantum processors faces challenges such as fabrication yield, frequency collisions, and chip-scale correlated errors induced by cosmic rays. One potential solution is to interconnect small superconducting quantum processors to form a quantum network, facilitating distributed quantum computing. Several experimental results on superconducting quantum networks with various topologies have been presented. These results pave the way for distributed quantum computing and offer testbeds for various quantum communication protocols.