  Qubit coherence and gate fidelity are typically considered the two most
important metrics for characterizing a quantum processor. An equally important
metric is inter-qubit connectivity as it minimizes gate count and allows
implementing algorithms efficiently with reduced error. However, inter-qubit
connectivity in superconducting processors tends to be limited to nearest
neighbour due to practical constraints in the physical realization. Here, we
introduce a novel superconducting architecture that uses a ring resonator as a
multi-path coupling element with the qubits uniformly distributed throughout
its circumference. Our planar design provides significant enhancement in
connectivity over state of the art superconducting processors without any
additional fabrication complexity. We theoretically analyse the qubit
connectivity and experimentally verify it in a device capable of supporting up
to twelve qubits where each qubit can be connected to nine other qubits. Our
concept is scalable, adaptable to other platforms and has the potential to
significantly accelerate progress in quantum computing, annealing, simulations
and error correction.
