Struct PauliString

pub struct PauliString {
    pub operators: HashMap<QubitId, PauliOperator>,
    pub n_qubits: usize,
}

A Pauli string representing a tensor product of Pauli operators

Fields

operators: HashMap<QubitId, PauliOperator>

Map from qubit index to Pauli operator

n_qubits: usize

Number of qubits this string acts on

Implementations

impl PauliString

pub fn new(n_qubits: usize) -> Self

Create a new Pauli string

pub fn identity(n_qubits: usize) -> Self

Create an identity string

pub fn with_operator(self, qubit: QubitId, op: PauliOperator) -> Self

Add a Pauli operator at a specific qubit

pub fn get_operator(&self, qubit: QubitId) -> PauliOperator

Get the operator at a specific qubit (returns I if not specified)

pub fn is_identity(&self) -> bool

Check if this is the identity string

pub fn weight(&self) -> usize

Get the weight (number of non-identity operators) of this string

pub fn multiply(&self, other: &PauliString) -> (Complex64, PauliString)

Multiply two Pauli strings

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

Commute two Pauli strings (returns true if they commute)

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.

impl Hash for PauliString

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PauliString

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for PauliString

impl StructuralPartialEq for PauliString