Struct Tensor 

pub struct Tensor {
    pub data: Array3<Complex64>,
    pub indices: Vec<TensorIndex>,
    pub label: String,
}

A tensor in the tensor network

Fields

data: Array3<Complex64>

Tensor data with dimensions [index1, index2, …]

indices: Vec<TensorIndex>

Physical dimensions for each index

label: String

Label for this tensor

Implementations

impl Tensor

pub fn new( data: Array3<Complex64>, indices: Vec<TensorIndex>, label: String, ) -> Self

Create a new tensor

pub fn identity(qubit: usize, index_id_gen: &mut usize) -> Self

Create identity tensor for a qubit

pub fn from_gate( gate: &Array2<Complex64>, qubits: &[usize], index_id_gen: &mut usize, ) -> Result<Self>

Create gate tensor from unitary matrix

pub fn contract( &self, other: &Tensor, self_idx: usize, other_idx: usize, ) -> Result<Tensor>

Contract this tensor with another along specified indices

pub fn rank(&self) -> usize

Get the rank (number of indices) of this tensor

pub fn size(&self) -> usize

Get the total size of this tensor

Trait Implementations

impl Clone for Tensor

fn clone(&self) -> Tensor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tensor

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

Formats the value using the given formatter.