qiskit.quantum_info.DensityMatrix.reverse_qargs¶
- DensityMatrix.reverse_qargs()[source]¶
Return a DensityMatrix with reversed subsystem ordering.
For a tensor product state this is equivalent to reversing the order of tensor product subsystems. For a density matrix \(\rho = \rho_{n-1} \otimes ... \otimes \rho_0\) the returned state will be \(\rho_0 \otimes ... \otimes \rho_{n-1}\).
- Renvoie
the state with reversed subsystem order.
- Type renvoyé