{"id":"W2008310167","doi":"10.1126/science.1200643","title":"A New Twist for Electron Beams","year":2011,"lang":"en","type":"letter","venue":"Science","topic":"Orbital Angular Momentum in Optics","field":"Physics and Astronomy","cited_by":18,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Victoria","funders":"","keywords":"Twist; Electron; Physics; Nuclear physics; Geometry; Mathematics","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001848026,0.0003694202,0.0004533043,0.0005182674,0.002109417,0.002939616,0.0008053024,0.00284609,0.009974921],"category_scores_gemma":[0.004514792,0.00032885,0.0002557286,0.0003151447,0.005859945,0.008354956,0.002776962,0.006474078,0.002118996],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009689374,"about_ca_system_score_gemma":0.0006566378,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002345487,"about_ca_topic_score_gemma":0.0004724129,"domain_scores_codex":[0.999146,0.0002187367,0.00003755676,0.00009851866,0.0003876275,0.0001116117],"domain_scores_gemma":[0.9986417,0.0005936472,0.00005938842,0.0003770457,0.0001793649,0.000148769],"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":[0.0001189215,0.00002006404,0.0001522062,0.0001238647,0.000007786303,0.0001953039,0.0003030505,0.0001323176,0.0108132,0.9245518,0.03617119,0.02741022],"study_design_scores_gemma":[0.00006862637,0.0001058492,0.0001078622,0.0001101915,0.000005484094,0.000437065,0.0002556731,0.000723278,0.007395938,0.3989469,0.5917996,0.0000436622],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.04256562,0.04651102,0.1362849,0.4143217,0.065897,0.0001586715,0.0007603042,0.001410739,0.29209],"genre_scores_gemma":[0.6473047,0.0279839,0.07278038,0.08029611,0.02058734,0.0004875269,0.000369392,0.000604575,0.1495861],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.009974921,"threshold_uncertainty_score":0.03336948,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01240738593587388,"score_gpt":0.2470402413841855,"score_spread":0.2346328554483116,"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."}}