Analog processors for solving various computational problems are provided.
Such analog processors comprise a plurality of quantum devices, for
instance qubits, arranged in a lattice, together with a plurality of
coupling devices. The analog processors further comprise bias control
systems each configured to apply a local effective bias on a
corresponding quantum device. A set of coupling devices in the plurality
of coupling devices is configured to couple nearest-neighbor quantum
devices in the lattice. Another set of coupling devices is configured to
couple next-nearest neighbor quantum devices. The analog processors
further comprise a plurality of coupling control systems each configured
to tune the coupling value of a corresponding coupling device in the
plurality of coupling devices to a coupling. Such quantum processors
further comprise a set of readout devices each configured to measure the
information from a corresponding quantum device in the plurality of
quantum devices.