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qiskit.quantum_info.pauli_group

pauli_group(number_of_qubits, case='weight')[source]

Return the Pauli group with 4^n elements.

The phases have been removed. case ‘weight’ is ordered by Pauli weights and case ‘tensor’ is ordered by I,X,Y,Z counting lowest qubit fastest.

Parameters
  • number_of_qubits (int) – number of qubits

  • case (str) – determines ordering of group elements (‘weight’ or ‘tensor’)

Returns

list of Pauli objects

Return type

list

Raises
  • QiskitError – case is not ‘weight’ or ‘tensor’

  • QiskitError – number_of_qubits is larger than 4

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