Quantuva, for the Noisy Quantum Era

Field notes

Quantuva models the workflow from circuit construction through compilation, simulation, measurement, and mitigation, with observables kept explicit rather than treated as an afterthought. Its worked examples include a three-qubit GHZ state, a four-qubit quantum Fourier transform, and a surface-code patch. The sample Python path uses a superconducting-v2 target, optimization level 2, 2,048 shots, and zero-noise extrapolation to print a calibrated expectation value.