Struct PauliString 

pub struct PauliString {
    pub operators: Vec<PauliOperator>,
    pub coefficient: Complex64,
    pub num_qubits: usize,
}

A Pauli string is a tensor product of Pauli operators

Fields

operators: Vec<PauliOperator>

Pauli operators at each qubit position

coefficient: Complex64

Overall coefficient

num_qubits: usize

Number of qubits

Implementations

impl PauliString

pub fn new(num_qubits: usize) -> Self

Create a new Pauli string

pub fn from_string(pauli_str: &str, coefficient: Complex64) -> Result<Self>

Create from string representation like “XYZI”

pub fn from_ops( num_qubits: usize, ops: &[(usize, PauliOperator)], coefficient: Complex64, ) -> Result<Self>

Create from qubit indices and Pauli operators

pub fn set_operator(&mut self, qubit: usize, op: PauliOperator) -> Result<()>

Set operator at specific qubit

pub fn get_operator(&self, qubit: usize) -> Result<PauliOperator>

Get operator at specific qubit

pub fn non_identity_ops(&self) -> Vec<(usize, PauliOperator)>

Get non-identity operators

pub fn commutes_with(&self, other: &PauliString) -> bool

Check if this Pauli string commutes with another

pub fn multiply(&self, other: &PauliString) -> Result<PauliString>

Multiply two Pauli strings

pub fn weight(&self) -> usize

Get weight (number of non-identity operators)

pub fn pauli_string(&self) -> String

Convert to Pauli string representation

pub fn evolution_circuit(&self, time: f64) -> Result<DynamicCircuit>

Create time evolution circuit for this Pauli string

Trait Implementations

impl Clone for PauliString

fn clone(&self) -> PauliString

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PauliString

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

Formats the value using the given formatter.

impl Display for PauliString

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

Formats the value using the given formatter.