qiskit.quantum_info.random_density_matrix

random_density_matrix(dims, rank=None, method='Hilbert-Schmidt', seed=None)

Generator a random DensityMatrix.

Parameter

• dims (int or tuple) – the dimensions of the DensityMatrix.

• rank (int or None) – Optional, the rank of the density matrix. The default value is full-rank.

• method (string) – Optional. The method to use. ‚Hilbert-Schmidt‘: (Default) sample from the Hilbert-Schmidt metric. ‚Bures‘: sample from the Bures metric.

• seed (int or np.random.Generator) – Optional. Set a fixed seed or generator for RNG.

Rückgabe

the random density matrix.

Rückgabetyp

DensityMatrix

Verursacht

QiskitError – if the method is not valid.