{"id":"W4415026730","doi":"10.1038/s41467-025-64087-6","title":"Week-long-lifetime microwave spectral holes in an erbium-doped scheelite crystal at millikelvin temperature","year":2025,"lang":"en","type":"article","venue":"Nature Communications","topic":"Quantum optics and atomic interactions","field":"Physics and Astronomy","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Sherbrooke","funders":"Intelligence Advanced Research Projects Activity; Agence Nationale de la Recherche; European Commission","keywords":"Microwave; Spectral hole burning; Crystal (programming language); Scheelite; Spin (aerodynamics); Spectral line; Doping; Modulation (music)","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":[0.0001493029,0.0002219431,0.0002346746,0.0002107583,0.0004828832,0.0001539912,0.0009592714,0.0002251131,0.0001599112],"category_scores_gemma":[0.00001978279,0.0002222586,0.0001435916,0.0004942513,0.0001679329,0.0002253015,0.0003996654,0.001720801,0.00005662785],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001364387,"about_ca_system_score_gemma":0.0001481893,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0000957538,"about_ca_topic_score_gemma":0.001684212,"domain_scores_codex":[0.9987843,0.0001563597,0.0003489214,0.0003046253,0.0001059836,0.0002997828],"domain_scores_gemma":[0.9979516,0.0001639251,0.00009863485,0.001543581,0.0001609923,0.00008131099],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00008426487,0.001988915,0.1467401,0.0000245007,0.0002645441,0.000005144479,0.001030847,0.0001021648,0.2728445,0.5562937,0.01897557,0.001645706],"study_design_scores_gemma":[0.006040323,0.0002413194,0.3504436,0.001206648,0.0004296777,0.00002493608,0.004993315,0.02174245,0.1150664,0.03139892,0.4654863,0.002926157],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9603528,0.002046569,0.000164086,0.006051265,0.0003407591,0.0003597441,0.0002075899,0.00005910759,0.03041806],"genre_scores_gemma":[0.9928846,0.00006477713,0.002840654,0.000422568,0.0001203223,0.0000555658,0.0008040789,0.00002260062,0.002784834],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5248948,"threshold_uncertainty_score":0.9063443,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01002070394444583,"score_gpt":0.2941348478647923,"score_spread":0.2841141439203465,"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."}}