Struct LcuOperator 

pub struct LcuOperator { /* private fields */ }

The LCU operator A = Σ_l c_l P_l and its dense f32 matrix.

Implementations

impl LcuOperator

pub fn new(terms: &[PauliTerm], n_qubits: usize) -> QuantumResult<Self>

Build the dense matrix of A = Σ_l c_l P_l from a list of Pauli-string terms over n_qubits qubits.

Errors

• QuantumError::EmptyInput if terms is empty.
• QuantumError::InvalidQubitCount if n_qubits == 0 or n_qubits > 8 (the dense matrix would be impractical beyond that).
• QuantumError::DimensionMismatch if any term’s Pauli-string length is not n_qubits.

pub fn n_qubits(&self) -> usize

Number of qubits n.

pub fn matrix(&self) -> &[Complex<f32>]

The dense row-major matrix entries of A.

pub fn classical_solution( &self, b: &[Complex<f32>], ) -> Option<Vec<Complex<f32>>>

Classical normalised solution A⁻¹|b⟩ (the reference target), or None if A is singular within tolerance. b is normalised internally.

Trait Implementations

impl Clone for LcuOperator

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LcuOperator

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

Formats the value using the given formatter.