classical_fisher(qnode[, argnums])
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Returns a function that computes the classical fisher information matrix (CFIM) of a given QNode or quantum tape. |
fidelity(qnode0, qnode1, wires0, wires1)
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Compute the fidelity for two QNode returning a state() (a state can be a state vector or a density matrix, depending on the device) acting on quantum systems with the same size. |
mutual_info(qnode, wires0, wires1[, base])
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Compute the mutual information from a QNode returning a state(): |
purity(qnode, wires)
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Compute the purity of a QNode returning state(). |
quantum_fisher(qnode, *args, **kwargs)
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Returns a function that computes the quantum fisher information matrix (QFIM) of a given QNode. |
reduced_dm(qnode, wires)
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Compute the reduced density matrix from a QNode returning state(). |
relative_entropy(qnode0, qnode1, wires0, wires1)
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Compute the relative entropy for two QNode returning a state() (a state can be a state vector or a density matrix, depending on the device) acting on quantum systems with the same size. |
trace_distance(qnode0, qnode1, wires0, wires1)
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Compute the trace distance for two QNode returning a state() (a state can be a state vector or a density matrix, depending on the device) acting on quantum systems with the same size. |
vn_entropy(qnode, wires[, base])
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Compute the Von Neumann entropy from a QNode returning a state(). |