{"id":"W1998006810","doi":"10.1103/physrevlett.95.033001","title":"Electric Quadrupole Shift Cancellation in Single-Ion Optical Frequency Standards","year":2005,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Advanced Frequency and Time Standards","field":"Physics and Astronomy","cited_by":153,"is_retracted":false,"has_abstract":true,"ca_institutions":"National Research Council Canada","funders":"","keywords":"Zeeman effect; Quadrupole; Physics; Atomic clock; Atomic physics; Ion; Computational physics; Quantum mechanics; Magnetic field","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002222788,0.0002272202,0.0004094618,0.00005331265,0.00006776856,0.00002462888,0.0001484409,0.00001239163,0.0004379023],"category_scores_gemma":[0.00002455971,0.0002070051,0.0001686673,0.0004211118,0.00005588355,0.0003114618,0.00001948222,0.0003171032,0.00008546979],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000319387,"about_ca_system_score_gemma":0.00008736615,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00004013152,"about_ca_topic_score_gemma":0.00001053291,"domain_scores_codex":[0.9983905,0.00007445827,0.000355141,0.0003394835,0.0004184445,0.0004219533],"domain_scores_gemma":[0.9994228,0.00007606333,0.0001114709,0.0002399891,0.00004982193,0.00009983741],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00007656351,0.001411898,0.01031107,0.000828971,0.0001269538,0.00002088235,0.0006942175,0.003758941,0.1076719,0.1932126,0.007187166,0.6746989],"study_design_scores_gemma":[0.006985951,0.001002952,0.01440672,0.01052757,0.0007112474,0.000008670175,0.00007791199,0.009031692,0.08164048,0.1440914,0.7259447,0.005570689],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8207368,0.01701471,0.05183327,0.02136311,0.0003787614,0.001628189,0.0002046012,0.0001579217,0.08668264],"genre_scores_gemma":[0.99599,0.0001991036,0.0006521453,0.001396947,0.001649654,0.00005017853,0.00002481096,0.00002321912,0.00001388437],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.7187575,"threshold_uncertainty_score":0.8441424,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00992585546436122,"score_gpt":0.2959707029554678,"score_spread":0.2860448474911066,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}