Quantum control system architecture for real-time pauli twirling of quantum programs

A computer-implemented method, comprising:

• determining, by a system operatively coupled to a processor, a seed to be applied to a first pseudorandom number generator (PRNG) associated with a first qubit of an input quantum circuit, the seed being shared with one or more second PRNGs associated with respective second qubits of the input quantum circuit that share a frame with the first qubit;
• and
• applying, by the system, selected Clifford operations to the first qubit before and after execution of respective layers of the input quantum circuit, resulting in a twirled quantum circuit, wherein the selected Clifford operations are selected according to an output of the first PRNG that is produced based on the seed.

A computer program product facilitating a process to facilitate real-time Pauli twirling of quantum programs with control flow, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• determine, by the processor, a seed to be applied to a first pseudorandom number generator (PRNG) associated with a first qubit of an input quantum circuit, the seed being shared with one or more second PRNGs associated with respective second qubits of the input quantum circuit that share a frame with the first qubit;
• and
• apply, by the processor, selected Clifford operations to the first qubit before and after execution of respective layers of the input quantum circuit, wherein the selected Clifford operations are selected according to an output of the first PRNG that is produced based on the seed.