cirq.testing.random_density_matrix

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Returns a random density matrix distributed with Hilbert-Schmidt measure.

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Main aliases

`cirq.testing.lin_alg_utils.random_density_matrix`

cirq.testing.random_density_matrix(
    dim: int,
    *,
    random_state: "cirq.RANDOM_STATE_OR_SEED_LIKE" = None
) -> np.ndarray

Args
dim	The width and height of the matrix.
random_state	A seed to use for random number generation.

Returns
The sampled density matrix.

Reference:

'Random Bures mixed states and the distribution of their purity' https://arxiv.org/abs/0909.5094