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

Claim 3:
4. The method of claim 2, wherein performing, for each ancilla qubit and conditioned on a determined state of the respective ancilla qubit, i) a NOT operation on the second stabilizer qubit, or ii) a NOT operation on the second stabilizer qubit and a Z gate on one or more target qubits comprises performing a sequence of operations from a second set of operations, the second set of operations comprising:
performing, conditioned on the state of the first ancilla qubit, a Z gate on each of the three target qubits and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the second ancilla qubit, a Z gate on the first and the second target qubits and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the third ancilla qubit, a Z gate on the first and the third target qubits and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the fourth ancilla qubit, a Z gate on the first target qubit and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the fifth ancilla qubit, a Z gate on the second and the third target qubits and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the sixth ancilla qubit, a Z gate on the second target qubit and a NOT operation on the second stabilizer qubit;
performing, conditioned on the state of the seventh ancilla qubit, a Z gate on the third target qubit and a NOT operation on the second stabilizer qubit; and
performing, conditioned on the state of the eighth ancilla qubit, a NOT operation on the second stabilizer qubit.