Input/output systems and methods for superconducting devices

A quantum processor comprising a plurality of tiles, the plurality of tiles arranged in a first grid, each tile of the plurality of tiles comprising:

• a shift register comprising at least one shift register stage communicatively coupled to a frequency-multiplexed resonant (FMR) readout;
• one or more qubits of a plurality of qubits of the quantum processor;
• one or more qubit readout devices, wherein the one or more qubit devices are communicatively coupled to the shift register, and each one of the one or more qubit readout devices is communicatively coupled to a respective one of the one or more qubits;
• a plurality of digital-to-analog converter (DAC) buffer stages communicatively coupled to the shift register;
• a plurality of shift-register-loadable DACs arranged in a second grid, wherein each one of the shift-register-loadable DACs is communicatively coupled to one of the plurality of DAC buffer stages;
• and
• a plurality of control structures, wherein each control structure is operable to control a respective tile of the plurality of tiles, and a subset of the plurality of control structures share analog lines that are identically coupled to at least one of:
• respective pluralities of shift register stages and respective pluralities of shift-register loadable DACs of correspondingly coupled tiles such that the subset of the plurality of control structures are operable to perform parallel input/output (I/O) operations among a subset of the plurality of tiles that comprises the correspondingly coupled tiles.

A method of programming a hybrid computing system, the hybrid computing system comprising a quantum processor and a digital processor, the quantum processor comprising a plurality of tiles, the plurality of tiles arranged in a first grid, each tile of the plurality of tiles comprising a shift register comprising a plurality of shift register stages communicatively coupled to a frequency-multiplexed resonant (FMR) readout, one or more qubits of a plurality of qubits of the quantum processor, one or more qubit readout devices communicatively coupled to the shift register, wherein each one of the one or more qubit readout devices is communicatively coupled to a respective one of the one or more qubits, a plurality of digital-to-analog converter (DAC) buffer stages communicatively coupled to the shift register, and a plurality of shift-register-loadable DACs arranged in a second grid, wherein each of the plurality of shift register-loadable DACs is communicatively coupled to one of the plurality of DAC buffer stages, the quantum processor further comprising a plurality of control structures, wherein each control structure is operable to control a respective tile of the plurality of tiles, and a subset of the plurality of control structures share analog lines that are identically coupled to at least one of:

• respective pluralities of shift register stages and respective pluralities of shift-register loadable DACs of correspondingly coupled tiles such that the subset of the plurality of control structures are operable to perform parallel input/output (I/O) operations among a subset of the plurality of tiles that comprises the correspondingly coupled tiles, the method comprising:
• programming the quantum processor by the digital processor, and
• reading out the quantum processor by the digital processor.