Coupling architectures for superconducting flux qubits

A quantum computing device comprising:

• a first array of qubits arranged along a first axis;
• and
• a second array of qubits arranged along a second axis different from the first axis so that the qubits of the second array intersect with the qubits of the first array to form a lattice structure,
• wherein each qubit in the first array is offset along the second axis relative to a directly adjacent qubit in the first array,
• each qubit in the second array is offset along the first axis relative to a directly adjacent qubit in the second array, and
• each intersection between a qubit from the first array and a qubit from the second array in the lattice structure comprises a coupler arranged to inductively couple the qubit from the first array to the qubit from the second array
• wherein each qubit of the lattice structure comprises a co-planar waveguide in direct electrical contact with a superconducting quantum interference device (SQUID), and
• wherein, for each co-planar waveguide of each qubit, an end of the co-planar waveguide is in direct electrical contact with ground.