Simulates various types of quantum noise
| 37 | correction_gates: List[str] |
| 38 | |
| 39 | class NoiseSimulator: |
| 40 | """Simulates various types of quantum noise""" |
| 41 | |
| 42 | def __init__(self, config: QECConfig): |
| 43 | self.config = config |
| 44 | |
| 45 | def create_noise_model(self) -> NoiseModel: |
| 46 | """Create a noise model for simulation""" |
| 47 | try: |
| 48 | noise_model = NoiseModel() |
| 49 | |
| 50 | # Add bit-flip error |
| 51 | error_prob = self.config.physical_error_rate |
| 52 | bit_flip = {"prob_x": error_prob} |
| 53 | noise_model.add_all_qubit_quantum_error( |
| 54 | qiskit.providers.aer.noise.depolarizing_error(error_prob, 1), |
| 55 | ["x"] # Apply to X gates |
| 56 | ) |
| 57 | |
| 58 | # Add measurement error |
| 59 | meas_error = self.config.measurement_error_rate |
| 60 | noise_model.add_all_qubit_readout_error([[1-meas_error, meas_error], |
| 61 | [meas_error, 1-meas_error]]) |
| 62 | |
| 63 | return noise_model |
| 64 | |
| 65 | except Exception as e: |
| 66 | logger.error(f"Error creating noise model: {str(e)}") |
| 67 | raise |
| 68 | |
| 69 | class SyndromeMeasurement: |
| 70 | """Handles syndrome measurement for error detection""" |