Patent ID: 11909392
Assignee: GOOGLE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The method of claim 2, wherein performing, for each stabilizer qubit, an X gate on i) multiple ancilla qubits, or ii) multiple ancilla qubits and one of the target qubits using the stabilizer qubit as a control, and measuring the stabilizer qubits to determine respective stabilizer qubit states comprises performing a sequence of operations from a first set of operations, the first set of operations comprising:
performing an X gate on a first target qubit using a first stabilizer qubit as a control;
performing an X gate on a first, second, third and fourth ancilla qubit using the first stabilizer qubit as a control;
performing an X gate on the first, the second, the third, the fourth, a fifth, a sixth, a seventh and an eighth ancilla qubits using a second stabilizer qubit as a control;
performing an X gate on a third target qubit using a third stabilizer qubit as a control;
performing an X gate on the first, the second, the fifth and the seventh ancilla qubits using the third stabilizer qubit as a control;
performing an X gate on a second target qubit using a fourth stabilizer qubit as a control;
performing an X gate on the first, second, fifth and sixth ancilla qubits using the fourth stabilizer qubit as a control;
measuring the first stabilizer qubit;
measuring the second stabilizer qubit;
measuring the third stabilizer qubit; and
measuring the fourth stabilizer qubit.