Struct RandomDensityMat 

pub struct RandomDensityMat<T: Float + Scalar> { /* private fields */ }

A struct for generating random density matrices.

It can generate random density matrices from different statistical ensembles (Haar or Bures), both real and complex matrices.

Example

use quantum_sim::random_gate::{RandomDensityMat, RandomUnitary};

let rho = RandomDensityMat::<f64>::new(4).build();
let rho_bures = RandomDensityMat::<f64>::new(4).bures().is_real(true).build();

Implementations

impl<T> RandomDensityMat<T>

where T: Float + Scalar, StandardNormal: Distribution<T>, Complex<T>: Lapack,

pub fn new(dim_col: usize) -> Self

pub fn dim(self, dim_row: usize) -> Self

Set row dimension (non-square).

pub fn is_real(self, flag: bool) -> Self

Set to real density matrix.

pub fn bures(self) -> Self

Use Bures distribution instead of Haar.

pub fn build(self) -> Array2<Complex<T>>

Build and return a normalized density matrix.

Returns

An Array2<Complex<T>> representing the random, trace-normalized density matrix.