Struct ProbabilisticErrorCancellation 

pub struct ProbabilisticErrorCancellation {
    pub noise_model: NoiseModel,
    pub num_samples: usize,
    pub seed: Option<u64>,
}

Probabilistic Error Cancellation (PEC) implementation

PEC provides exact error mitigation at the cost of increased sampling overhead. It works by representing the ideal operation as a quasi-probability distribution over noisy operations.

Fields

noise_model: NoiseModel

Noise model for the device

num_samples: usize

Number of samples for PEC

seed: Option<u64>

Monte Carlo seed for reproducibility

Implementations

impl ProbabilisticErrorCancellation

pub fn new(noise_model: NoiseModel, num_samples: usize) -> Self

Create a new PEC instance

pub fn with_seed(self, seed: u64) -> Self

Set seed for reproducibility

pub fn calculate_overhead(&self, circuit_depth: usize, num_gates: usize) -> f64

Calculate the sampling overhead γ for a circuit

pub fn mitigate<F>(&self, executor: F, observable: &str) -> Result<PECResult>

where F: Fn(&str, i32) -> Result<f64>,

Apply PEC to mitigate errors

Trait Implementations

impl Clone for ProbabilisticErrorCancellation

fn clone(&self) -> ProbabilisticErrorCancellation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProbabilisticErrorCancellation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.