qiskit.quantum_info.Kraus.power¶
- Kraus.power(n)¶
Return the power of the quantum channel.
- Parameter
n (float) – the power exponent.
- Rückgabe
the channel \(\mathcal{{E}} ^n\).
- Rückgabetyp
- Verursacht
QiskitError – if the input and output dimensions of the SuperOp are not equal.
Bemerkung
For non-positive or non-integer exponents the power is defined as the matrix power of the
SuperOprepresentation ie. for a channel \(\mathcal{{E}}\), the SuperOp of the powered channel \(\mathcal{{E}}^\n\) is \(S_{{\mathcal{{E}}^n}} = S_{{\mathcal{{E}}}}^n\).