Struct PulseOptimizer 

pub struct PulseOptimizer { /* private fields */ }

Pulse optimization

Implementations

impl PulseOptimizer

pub fn new() -> Self

Create a new optimizer

Examples found in repository

examples/pulse_demo.rs (line 274)

fn demo_pulse_optimization() -> quantrs2_core::error::QuantRS2Result<()> {
    println!("--- Pulse Optimization ---");

    let sample_rate = 1.0;
    let optimizer = PulseOptimizer::new();

    // Create initial pulse
    let mut pulse = Waveform::gaussian(0.5, 15.0, 60.0, sample_rate);
    println!("Initial pulse:");
    println!("  Type: Gaussian");
    println!("  Duration: {} ns", pulse.duration);
    println!("  Max amplitude: {:.4}", pulse.max_amplitude());

    // Apply DRAG correction
    optimizer.apply_drag_correction(&mut pulse, 0.1)?;
    println!("\nAfter DRAG correction:");
    println!(
        "  Has imaginary component: {}",
        pulse.samples.iter().any(|s| s.im.abs() > 1e-10)
    );

    // Create a pulse schedule to optimize
    let mut schedule = PulseSchedule::new();

    // Add multiple pulses
    for i in 0..3 {
        let waveform = Waveform::gaussian(0.4, 12.0, 48.0, sample_rate);
        schedule.add_instruction(
            i as f64 * 60.0,
            PulseInstruction::Play {
                waveform,
                channel: Channel::Drive(i),
                phase: 0.0,
            },
        );
    }

    println!("\nSchedule optimization:");
    println!("  Original duration: {} ns", schedule.duration);

    // Optimize (placeholder - would do actual optimization)
    optimizer.optimize(&mut schedule)?;

    println!(
        "  Optimized duration: {} ns (placeholder)",
        schedule.duration
    );
    println!("  Target fidelity: 0.999"); // Placeholder since field is private

    // Demonstrate pulse shaping techniques
    println!("\nPulse shaping techniques:");
    println!("  - Gaussian: Smooth envelope, reduced frequency spread");
    println!("  - DRAG: Reduces leakage to higher levels");
    println!("  - Cosine: Smooth turn-on/off");
    println!("  - GRAPE: Optimal control for specific unitaries");

    println!();
    Ok(())
}

pub fn optimize(&self, schedule: &mut PulseSchedule) -> QuantRS2Result<()>

Optimize a pulse schedule

Examples found in repository

examples/pulse_demo.rs (line 311)

fn demo_pulse_optimization() -> quantrs2_core::error::QuantRS2Result<()> {
    println!("--- Pulse Optimization ---");

    let sample_rate = 1.0;
    let optimizer = PulseOptimizer::new();

    // Create initial pulse
    let mut pulse = Waveform::gaussian(0.5, 15.0, 60.0, sample_rate);
    println!("Initial pulse:");
    println!("  Type: Gaussian");
    println!("  Duration: {} ns", pulse.duration);
    println!("  Max amplitude: {:.4}", pulse.max_amplitude());

    // Apply DRAG correction
    optimizer.apply_drag_correction(&mut pulse, 0.1)?;
    println!("\nAfter DRAG correction:");
    println!(
        "  Has imaginary component: {}",
        pulse.samples.iter().any(|s| s.im.abs() > 1e-10)
    );

    // Create a pulse schedule to optimize
    let mut schedule = PulseSchedule::new();

    // Add multiple pulses
    for i in 0..3 {
        let waveform = Waveform::gaussian(0.4, 12.0, 48.0, sample_rate);
        schedule.add_instruction(
            i as f64 * 60.0,
            PulseInstruction::Play {
                waveform,
                channel: Channel::Drive(i),
                phase: 0.0,
            },
        );
    }

    println!("\nSchedule optimization:");
    println!("  Original duration: {} ns", schedule.duration);

    // Optimize (placeholder - would do actual optimization)
    optimizer.optimize(&mut schedule)?;

    println!(
        "  Optimized duration: {} ns (placeholder)",
        schedule.duration
    );
    println!("  Target fidelity: 0.999"); // Placeholder since field is private

    // Demonstrate pulse shaping techniques
    println!("\nPulse shaping techniques:");
    println!("  - Gaussian: Smooth envelope, reduced frequency spread");
    println!("  - DRAG: Reduces leakage to higher levels");
    println!("  - Cosine: Smooth turn-on/off");
    println!("  - GRAPE: Optimal control for specific unitaries");

    println!();
    Ok(())
}

pub fn apply_drag_correction( &self, waveform: &mut Waveform, beta: f64, ) -> QuantRS2Result<()>

Apply DRAG correction

Examples found in repository

examples/pulse_demo.rs (line 284)

fn demo_pulse_optimization() -> quantrs2_core::error::QuantRS2Result<()> {
    println!("--- Pulse Optimization ---");

    let sample_rate = 1.0;
    let optimizer = PulseOptimizer::new();

    // Create initial pulse
    let mut pulse = Waveform::gaussian(0.5, 15.0, 60.0, sample_rate);
    println!("Initial pulse:");
    println!("  Type: Gaussian");
    println!("  Duration: {} ns", pulse.duration);
    println!("  Max amplitude: {:.4}", pulse.max_amplitude());

    // Apply DRAG correction
    optimizer.apply_drag_correction(&mut pulse, 0.1)?;
    println!("\nAfter DRAG correction:");
    println!(
        "  Has imaginary component: {}",
        pulse.samples.iter().any(|s| s.im.abs() > 1e-10)
    );

    // Create a pulse schedule to optimize
    let mut schedule = PulseSchedule::new();

    // Add multiple pulses
    for i in 0..3 {
        let waveform = Waveform::gaussian(0.4, 12.0, 48.0, sample_rate);
        schedule.add_instruction(
            i as f64 * 60.0,
            PulseInstruction::Play {
                waveform,
                channel: Channel::Drive(i),
                phase: 0.0,
            },
        );
    }

    println!("\nSchedule optimization:");
    println!("  Original duration: {} ns", schedule.duration);

    // Optimize (placeholder - would do actual optimization)
    optimizer.optimize(&mut schedule)?;

    println!(
        "  Optimized duration: {} ns (placeholder)",
        schedule.duration
    );
    println!("  Target fidelity: 0.999"); // Placeholder since field is private

    // Demonstrate pulse shaping techniques
    println!("\nPulse shaping techniques:");
    println!("  - Gaussian: Smooth envelope, reduced frequency spread");
    println!("  - DRAG: Reduces leakage to higher levels");
    println!("  - Cosine: Smooth turn-on/off");
    println!("  - GRAPE: Optimal control for specific unitaries");

    println!();
    Ok(())
}