Analysis

FidelityAnalysis

Bases: Forward

This analysis pass can be used to track the global addresses of qubits and wires.

Usage examples

from bloqade import qasm2
from bloqade.noise import native
from bloqade.analysis.fidelity import FidelityAnalysis
from bloqade.qasm2.passes.noise import NoisePass

noise_main = qasm2.extended.add(native.dialect)

@noise_main
def main():
    q = qasm2.qreg(2)
    qasm2.x(q[0])
    return q

NoisePass(main.dialects)(main)

fid_analysis = FidelityAnalysis(main.dialects)
fid_analysis.run_analysis(main, no_raise=False)

gate_fidelity = fid_analysis.gate_fidelity
atom_survival_probs = fid_analysis.atom_survival_probability

atom_survival_probability class-attribute instance-attribute

atom_survival_probability: list[float] = field(init=False)

The probabilities that each of the atoms in the register survive the duration of the analysed program. The order of the list follows the order they are in the register.

gate_fidelity class-attribute instance-attribute

gate_fidelity: float = 1.0

The fidelity of the gate set described by the analysed program. It reduces whenever a noise channel is encountered.