iqm.benchmarks.entanglement.ghz

GHZ state benchmark.

Functions

fidelity_analysis(run)	Analyze counts and compute the state fidelity.
fidelity_ghz_coherences(dataset, ...)	Estimates the GHZ state fidelity based on the multiple quantum coherences method based on [Mooney, 2021].
fidelity_ghz_randomized_measurements(...)	Estimates GHZ state fidelity through cross-correlations of RMs.
generate_ghz_linear(num_qubits)	Generates a GHZ state by applying a Hadamard and a series of CX gates in a linear fashion.
generate_ghz_log_cruz(num_qubits)	Generates a GHZ state in log-depth according to https://arxiv.org/abs/1807.05572.
generate_ghz_log_mooney(num_qubits)	Generates a GHZ state in log-depth according to https://arxiv.org/abs/2101.08946.
generate_ghz_star(num_qubits)	Generates the circuit for creating a GHZ state by maximizing the number of CZ gates between a pair of MOVE gates.
generate_ghz_star_optimal(qubit_layout, backend)	Generates the circuit for creating a GHZ state by maximizing the number of CZ gates between a pair of MOVE gates.
plot_fidelities(observations, dataset, ...)	Plots all the fidelities stored in the observations into a single plot of fidelity vs.

Classes

GHZBenchmark(backend, configuration)	The GHZ Benchmark estimates the quality of generated Greenberger–Horne–Zeilinger states.
GHZConfiguration(*, benchmark, shots, ...)	GHZ state configuration.

Inheritance