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qiskit.quantum_info.random_quantum_channel

random_quantum_channel(input_dims=None, output_dims=None, rank=None, seed=None)[Quellcode]

Return a random CPTP quantum channel.

This constructs the Stinespring operator for the quantum channel by sampling a random isometry from the unitary Haar measure.

Parameter
  • input_dims (int or tuple) – the input dimension of the channel.

  • output_dims (int or tuple) – the input dimension of the channel.

  • rank (int) – Optional. The rank of the quantum channel Choi-matrix.

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

Rückgabe

a quantum channel operator.

Rückgabetyp

Stinespring

Verursacht

QiskitError – if rank or dimensions are invalid.

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