Module noise_models 

Comprehensive noise models with Kraus operators Noise models for realistic quantum simulation

This module provides comprehensive noise modeling capabilities for quantum circuits, essential for simulating real quantum hardware behavior. It implements various quantum noise channels using Kraus operator representations.

Features

• Standard Noise Channels: Depolarizing, bit flip, phase flip, amplitude damping
• Thermal Relaxation: T1/T2 decoherence modeling
• Composite Noise: Combine multiple noise sources
• Gate-Specific Noise: Apply noise to specific gate types
• Measurement Noise: Readout error modeling

Example

use quantrs2_sim::noise_models::{NoiseModel, DepolarizingNoise};
use scirs2_core::ndarray::Array1;
use scirs2_core::Complex64;
use std::sync::Arc;

// Create a noise model with depolarizing noise
let mut noise_model = NoiseModel::new();
noise_model.add_channel(Arc::new(DepolarizingNoise::new(0.01)));

// Apply noise to a quantum state
let state = Array1::from_vec(vec![
    Complex64::new(1.0, 0.0),
    Complex64::new(0.0, 0.0),
]);
let noisy_state = noise_model.apply_single_qubit(&state, 0).unwrap();

Structs

AmplitudeDampingNoise

Amplitude damping channel

BitFlipNoise

Bit flip (X) error channel

DepolarizingNoise

Depolarizing noise channel

NoiseModel

Composite noise model

PhaseDampingNoise

Phase damping channel

PhaseFlipNoise

Phase flip (Z) error channel

ThermalRelaxationNoise

Thermal relaxation channel

Traits

NoiseChannel

Trait for quantum noise channels

Type Aliases

NoiseResult

Result type for noise operations