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qiskit.quantum_info.entropy

entropy(state, base=2)[Quellcode]

Calculate the von-Neumann entropy of a quantum state.

The entropy \(S\) is given by

\[S(\rho) = - Tr[\rho \log(\rho)]\]
Parameter
Rückgabe

The von-Neumann entropy S(rho).

Rückgabetyp

float

Verursacht

QiskitError – if the input state is not a valid QuantumState.

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