Measurement (shot sampling & pure-state fidelity)
Turning a statevector into finite-shot counts (sample_counts, a Qiskit-get_counts()
equivalent), and comparing two pure states directly (statevector_fidelity) without building a
density matrix first.
::: dense_evolution.utils.measurement
See also: uhlmann_fidelity for the density-matrix fidelity statevector_fidelity
is the pure-state counterpart of.