{"artifact_id":"L1-163","layer":"L1","title":"Scanning Tunneling Microscopy (STM)","domain":"Scanning Probe","sub_domain":"Tunneling-current atomic-resolution imaging","physics_fingerprint":{"L_DAG":3.5,"title":"Scanning Tunneling Microscopy (STM)","domain":"Scanning Probe","carrier":"none","primitives":["L.bias_voltage","L.quantum_tunneling","S.scan.raster","D.tunneling_current","int.spatial"],"sub_domain":"Tunneling-current atomic-resolution imaging","noise_model":"gaussian","problem_class":"nonlinear_inverse","solution_space":"2D_local_DOS_map","difficulty_delta":5,"integration_axis":"spatial","sensing_mechanism":"scanning_tunneling_microscopy"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 2D local DOS map is guaranteed within the declared Omega bounds. Uniqueness is local rather than global (non-convex landscape); convergence depends on initialisation and priors. Stability is moderately conditioned (kappa_eff ~= 15); tip_apex_geometry dominates the stability cliff; thermal_drift and the remaining mismatch parameters contribute higher-order bias terms. Additive gaussian thermal/electronic noise sets the irreducible data-fidelity floor, while mild Tikhonov or analytic inversion is sufficient at the nominal Omega point.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":512,"W":512,"SNR_dB":30,"bias_mV":100,"pixel_A":0.5,"setpoint_pA":100,"thermal_drift":0.0,"electronic_noise":0.0,"tip_apex_geometry":1.0,"piezo_nonlinearity":0.0},"input_format":"measurement_only","problem_class":"stm","forward_operator":"stm_forward","epsilon_fn_center":"29.0"},"omega_bounds":{"H":64,"W":64,"SNR_dB":[0.0,40.0],"bias_mV":[1,3000],"pixel_A":[0.05,5.0],"setpoint_pA":[1,10000],"thermal_drift":[0.0,5],"electronic_noise":[0.0,0.3],"tip_apex_geometry":[0.3,1.0],"piezo_nonlinearity":[0.0,0.3]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["stm"],"allowed_omega_dimensions":["H","W","pixel_A","bias_mV","setpoint_pA","tip_apex_geometry","thermal_drift","piezo_nonlinearity","electronic_noise","SNR_dB","tip_apex_geometry","thermal_drift","piezo_nonlinearity","electronic_noise"],"allowed_forward_operators":["stm_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":300,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xb69cccba88936901b394ded247d74924118cc1604f7ee7329714a8f7abf67cbe","chain_tx_hash":"0xcfc21ce00bca71549b10d7c363d04c42095190945f058d46dba36d12b1e9442d","chain_block":41554243}