Get the anomaly score for an input time series y. We need to pass the optimal parameters (arguments with suffix _star). Optionally return the

retrieving the parameters n, k and r from the given Hamiltonian Args: Hamiltonian (qml.Hamiltonian) : Hamiltonian from which to

retrieving the parameters n, k and r from the given Hamiltonian Args: Hamiltonian (qml.Hamiltonian) : Hamiltonian from which to

Compute the unitary matrix associated to the time evolution of H.

Generates N strategy matrices, normalised by row

Get a 1D tensor containing the truth values (1 or -1) for a given set of time series.

The ground state solution map that we want to differentiate through, computed from an eigendecomposition. Args: a (float): The parame

The ground state solution map that we want to differentiate through. Args: a (float): The parameter in the Hamiltonian, H(a).

Normalised version of f above, such that \sum_x |h(x)|^2 = 1.

Returns a Hamming code parity check matrix of a given rank.

Display image from tensor.

The quantum kernel.

Prepares the Krylov ground-state by applying QSP with the input angles. Then measures the expectation value of the desired observable.

Applies the basis rotation transformation corresponding to the leaf tensor.

Evaluate LER for a given set of stabilizers and logical operators.

Make an HTML figure from a source string. Returns an HTML string for the figure.

1D regression problem y=sin(x*\pi)

Compute how many model evaluations are needed for neural network training and prediction.

Generates the coefficients to compute the "local" cost function C_L.

Minimize the negative of the objective function C by postprocessing the QNnode output.

Calculates objective function.

Calculate the operator 2-norm. Args: R (array): The operator whose norm we want to calculate. Returns: Scalar correspon

Returns a copy of A with rows and columns swapped according to permutation. For example, the permutation [1, 2, 0] swaps 0->1, 1->2, 2->0.

Imparts a phase (-1)^{vy}.

Given some floating-point phase, estimate integers s, r such that s / r = phase. Uses a JIT-compatible re-implementation of Fraction.limit_denomi

Equivalent to doing: pl_circuit = qp.QNode(qp.from_qiskit(qc, measurements=qp.counts(wires=[0, 1])), dev)

Plot double cake data and corresponding sectors.

Plot the results

Computes PQK kernel matrix from Pauli vectors + RBF kernel.

quntum function that prepares the state.

Prints the most probable states and their probabilities in descending order.

Process a link to a PennyLane or Catalyst object.

Measure two qubits in the Bell basis and postselect on (|00>+|11>)/sqrt(2).

A variational quantum circuit representing the Universal classifier. Args: params (array[float]): array of parameters x (array[fl

Adding a bias.

Convolves the input image with many applications of the same quantum circuit.

Qubit rotation QNode

Generate stabilizers and logical operators for a rotated surface code.

Rotation operation, S(phi_k)