{"status":"done","method":"density_matrix","why":"density matrix of the 2 physical qubits the program touches, each gate and channel one superoperator pass, under the noise of the target synthetic-line-5 (calibration content:0b152c6f06102941): the program compiled to rzsxxcz on physical qubits [3, 4], 0 swaps, expected success 0.9563; each gate costed as the target's own, equal up to one-qubit gates; the route the job names, which meets its contract (1 of 1 routes)","estimate":{"memory_bytes":268435720,"work":400},"request":{"qasm":"OPENQASM 3.0;\ninclude \"stdgates.inc\";\nqubit[2] q;\nbit[2] c;\nh q[0];\ncx q[0], q[1];\nc = measure q;\n","shots":50,"seed":2,"contract":{"deadline_seconds":60.0,"providers":"allowed"},"target":"synthetic-line-5"},"result":{"method":"density_matrix","qubits":2,"gates":2,"accuracy":{"class":"exact","note":"the noisy state under the target's noise model, exactly: a model of the device from its calibration snapshot: each gate's reported error as depolarising noise beside the amplitude damping and dephasing its T1, T2 and duration give, idling relaxed the same way, and each qubit's readout by its assignment errors; Markovian and gate-local, so crosstalk, leakage, coherent over-rotation and drift are not modelled; counts are seeded samples of its distribution, each bit misread by its qubit's assignment errors; expectation values are of the state before the measurement, with no readout error"},"counts":{"00":26,"11":22,"01":2},"distinct_outcomes":3,"omitted_shots":0,"ideal":{"computed":true,"total_variation_distance":0.03964591211886446,"hellinger_fidelity":0.960218501561203,"note":"the noisy distribution over the classical bits, exactly, against the circuit's ideal one by the bit-exact state vector: how far the target's noise moves the answer"},"target":{"name":"synthetic-line-5","hash":"a618b0e1c671834a0a8967524b4a7018752f50e3c11d98c1c49a687806e81701","hash_is":"BLAKE3 of the target document's RFC 8785 text","calibration":{"id":"content:0b152c6f06102941","timestamp":"2026-10-01T09:00:00+00:00"},"source":{"format":"device-properties","note":"synthetic: written for wai-quantum in the shape of the device-properties format, its numbers made up; no device's data"},"placement":{"basis":"rzsxxcz","exact":false,"layout":[3,4],"final_layout":[3,4],"swaps":0,"native_gates":9,"two_qubit_gates":1,"expected_success":0.9563103156162862,"fewest_swaps":{"layout":[0,1],"swaps":0,"expected_success":0.9491455074213893},"layouts_compared":8,"chosen":"noise-aware: of 8 layouts and their routes, the highest expected success (0.956310, against 0.949146 for the fewest swaps)","expected_success_is":"the product of each gate's success (one less its reported error, or where none is reported its relaxation over its duration) and each measured qubit's readout success (one less the mean of its assignment errors); idling is in the noise model, not in this figure","checked":"the compiled program's final state equals the circuit's, each logical qubit on the physical qubit it ends on, by the bit-exact simulator","notes":["the target's gates do not hold one of the compiler's sets, so the program is compiled to rz sx x cz and each gate costed as the target's (cz as cx): the same up to one-qubit gates, which are not counted; a simulation of the device, not a program it runs as it is"]},"noise":{"model":"a model of the device from its calibration snapshot: each gate's reported error as depolarising noise beside the amplitude damping and dephasing its T1, T2 and duration give, idling relaxed the same way, and each qubit's readout by its assignment errors; Markovian and gate-local, so crosstalk, leakage, coherent over-rotation and drift are not modelled","simulated_qubits":[3,4],"duration_ns":491.0,"idle_ns":35.5,"channels":16,"one_qubit_depolarizing":{"gates":8,"mean":0.000025084801525975534},"two_qubit_depolarizing":{"gates":1,"mean":0.0029999418028110424},"readout":[{"logical":0,"physical":3,"p01":0.006877,"p10":0.03886},{"logical":1,"physical":4,"p01":0.007857,"p10":0.01804}],"notes":[]}},"engine":{"name":"wai-quantum","version":"0.8.1"},"schema":"wai.quantum.job-result/1","planner":{"format":"wai.quantum.planner/1","wanted":"exact","wanted_from":"named","named":"method:density_matrix","question":"counts","auto":null,"host":{"job_bytes":17179869184,"providers":[]},"routes":[{"route":"method:density_matrix","kind":"local","method":"density_matrix","class":"exact","host_dependent":false,"auto_rank":null,"price":{"money":{"free":true},"time":{"seconds":7.2e-8,"basis":"nominal"},"memory_bytes":268435720,"work":400,"energy":{"joules":null,"why":"this host estimates no job's energy before it runs"},"leaves_out":[]},"outcome":"chosen"}],"choice":"method:density_matrix","why":"the route the job names, which meets its contract (1 of 1 routes)","stable":{"scope":"digest: what each route that depends on nothing of the host costs, the same for this request and job memory on every host of one engine; choice: whether the route chosen is one of those whatever the host","routes":["method:density_matrix"],"digest":"16b4bfb6541720b9990c891168f637b933f09ef1134cd0bfb5165ac5d248a7e3","choice":false},"kept":{"deadline":{"seconds":60.0,"elapsed_ms":1,"kept":true}}},"energy":{"unmetered":"the command line does not meter a run's energy"},"receipt":{"alg":"ed25519","canon":"rfc8785","key":"197f6b23e16c8532c6abc838facd5ea789be0c76b2920334039bfa8b3d368d61","digest":"756e787363f6c18d3392c97f574846e8d5ec9642cb5eade81f698068fa650d9a","signature":"03bfebaee776044398a164427e01924ded2bce9c4ae4bf5dbad6e408b02e49564e7017f6beaf5b5b42e8655825b2306942fc448b4ea0b8e902b0580848761405"}}}