Bell-State Example

The smallest end-to-end run through the SDK: a declarative 2-qubit program executed on the local statevector backend. It exercises the core seam of QuantsMind Quantum — declare → validate → translate → delegate → enriched result — without any domain machinery.

Run it

pip install "quantsmind[quantum]"
python examples/bell_state.py

Expected output (counts vary by seed; only 00/11 appear):

program: bell (2 qubits, 2 gates)
validation: OK
circuit: QuantumCircuit
success: True
backend: statevector
counts: {'11': 509, '00': 515}

What it demonstrates

Step	API	Role
Declare	QuantumProgram.bell_state()	H + CNOT as data, no execution logic
Validate	validate_program(program)	Error list; empty means valid
Translate	build_circuit(program)	MicroQuantum QuantumCircuit
Delegate	QuantumExperiment(...).run()	Execution via MicroQuantum runtime
Result	QuantumResult	counts, success, backend_name, provenance, to_dict()

Compatibility canary

tests/unit/quantum/test_bell_state_example.py runs the same flow seeded (seed=42) and asserts the entanglement signature structurally (keys ⊆ {00, 11}, totals, provenance). It guards the microquantum>=0.4,<0.5 pin: engine drift that changes gate handling, backend names, or result shape fails fast here.