Chips including classical and quantum computing processors

An apparatus comprising:

• a substrate;
• a classical computing processor formed on the substrate;
• a quantum computing processor formed on the substrate;
• and
• one or more interprocessor coupling components between the classical computing processor and the quantum computing processor, the one or more interprocessor coupling components being formed on the substrate and being configured to allow data exchange between the classical computing processor and the quantum computing processor,
• wherein the quantum computing processor comprises a plurality of quantum unit cells, each quantum unit cell of the plurality of quantum unit cells comprising a plurality of qubits,
• wherein the classical computing processor comprises a plurality of classical unit cells, each classical unit cell of the plurality of classical unit cells comprising a plurality of active components, each active component configured to generate a classical bit, and
• wherein, for each classical unit cell of the plurality of classical unit cells, a first subset of the plurality of active components is coupled, by the one or more interprocessor coupling components, to a respective first subset of qubits within a corresponding quantum unit cell of the plurality of quantum unit cells.