Struct MeasurementCorrector 

pub struct MeasurementCorrector { /* private fields */ }

Corrects readout errors using a full calibration matrix built from per-qubit error probabilities.

Implementations

impl MeasurementCorrector

pub fn new(readout_errors: &[(f64, f64)]) -> Self

Build the calibration matrix from per-qubit readout errors.

readout_errors[q] = (p01, p10) where:

• p01 = probability of reading 1 when the true state is 0
• p10 = probability of reading 0 when the true state is 1

The full calibration matrix is the tensor product of the individual 2x2 matrices: M_q = [[1 - p01, p10], [p01, 1 - p10]]

pub fn correct_counts( &self, counts: &HashMap<Vec<bool>, usize>, ) -> HashMap<Vec<bool>, f64>

Correct measurement counts by applying the inverse of the calibration matrix.

For small qubit counts (<= 12), the full matrix is inverted directly. For larger systems, the tensor product structure is exploited for efficient correction.

Returns corrected counts as floating-point values since the inverse may produce non-integer results.

pub fn calibration_matrix(&self) -> &Vec<Vec<f64>>

Accessor for the calibration matrix.

Trait Implementations

impl Clone for MeasurementCorrector

fn clone(&self) -> MeasurementCorrector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeasurementCorrector

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

Formats the value using the given formatter.