Quantum measurement and control system for multi-bit quantum feedback control

A method of performing measurement and control (MC) via a quantum measurement and control (QMC) system, the MC system includes a plurality of measurement and control subgroups (MCSGs), each MCSG being used as a node in the MC network and having a connection relationship with at least one another MCSG, the method comprising:

• performing, by the each MCSB, MC on a physical quantum bit (qubit) group, the physical qubit group including a plurality of physical qubits;
• controlling, by each of plurality of control units included in the each MCSG, one of the plurality of physical qubits;
• measuring, by the measurement unit, a quantum state of the one of the plurality of physical qubits, and transmitting, by the measurement unit, a control instruction to the each of the plurality of control units based on the quantum state as measured;
• and
• controlling, by the each of the plurality of control units, the one of the plurality of physical qubits according to the control instruction.

A non-transitory computer-readable storage medium storing computer program instructions executable by at least one processor of a quantum measurement and control (QMC) system to perform a method, the QMC system includes a plurality of measurement and control subgroups (MCSGs), each MCSG being used as a node in the MC network and having a connection relationship with at least one another MCSG, the method comprising:

• performing, by the each MCSB, MC on a physical quantum bit (qubit) group, the physical qubit group including a plurality of physical qubits;
• controlling, by each of plurality of control units included in the each MCSG, one of the plurality of physical qubits;
• measuring, by the measurement unit, a quantum state of the one of the plurality of physical qubits, and transmitting, by the measurement unit, a control instruction to the each of the plurality of control units based on the quantum state as measured;
• and
• controlling, by the each of the plurality of control units, the one of the plurality of physical qubits according to the control instruction.