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qiskit.quantum_info.Kraus.power

Kraus.power(n)

Return the power of the quantum channel.

パラメータ

n (float) – the power exponent.

戻り値

the channel \(\mathcal{{E}} ^n\).

戻り値の型

SuperOp

例外

QiskitError – if the input and output dimensions of the SuperOp are not equal.

注釈

For non-positive or non-integer exponents the power is defined as the matrix power of the SuperOp representation ie. for a channel \(\mathcal{{E}}\), the SuperOp of the powered channel \(\mathcal{{E}}^\n\) is \(S_{{\mathcal{{E}}^n}} = S_{{\mathcal{{E}}}}^n\).