{"id":"https://openalex.org/W7225809608","doi":"https://doi.org/10.5281/zenodo.24133813","title":"Axial Torsion Bounds from the Hydrogen Hyperfine Interval and Its Measurement Precision","display_name":"Axial Torsion Bounds from the Hydrogen Hyperfine Interval and Its Measurement Precision","publication_year":2026,"publication_date":"2026-11-11","ids":{"openalex":"https://openalex.org/W7225809608","doi":"https://doi.org/10.5281/zenodo.24133813"},"language":"en","primary_location":{"id":"doi:10.5281/zenodo.24133813","doi":"https://doi.org/10.5281/zenodo.24133813","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24133813","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.5281/zenodo.24133813","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5161362375","display_name":"William Alexander Aldred","orcid":"https://orcid.org/0009-0000-1215-577X","observed_orcids":["https://orcid.org/0009-0000-1215-577X"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Aldred, William Alexander","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0009-0000-1215-577X","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5161362375"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11960","display_name":"Relativity and Gravitational Theory","score":0.4203999936580658,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11960","display_name":"Relativity and Gravitational Theory","score":0.4203999936580658,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10523","display_name":"Atomic and Molecular Physics","score":0.2506999969482422,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11993","display_name":"Atomic and Subatomic Physics Research","score":0.10140000283718109,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[],"concepts":[{"id":"https://openalex.org/C131538251","wikidata":"https://www.wikidata.org/wiki/Q1413102","display_name":"Hyperfine structure","level":2,"score":0.819100022315979},{"id":"https://openalex.org/C40422974","wikidata":"https://www.wikidata.org/wiki/Q741248","display_name":"Assertion","level":2,"score":0.5648999810218811},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5428000092506409},{"id":"https://openalex.org/C32848918","wikidata":"https://www.wikidata.org/wiki/Q845789","display_name":"Observable","level":2,"score":0.5285000205039978},{"id":"https://openalex.org/C512968161","wikidata":"https://www.wikidata.org/wiki/Q556","display_name":"Hydrogen","level":2,"score":0.4797999858856201},{"id":"https://openalex.org/C77461463","wikidata":"https://www.wikidata.org/wiki/Q7827201","display_name":"Torsion (gastropod)","level":2,"score":0.4733999967575073},{"id":"https://openalex.org/C155512373","wikidata":"https://www.wikidata.org/wiki/Q287450","display_name":"Residual","level":2,"score":0.45350000262260437},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.40709999203681946},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.3833000063896179},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.36880001425743103},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.326200008392334},{"id":"https://openalex.org/C3020698628","wikidata":"https://www.wikidata.org/wiki/Q1413102","display_name":"Hyperfine coupling","level":3,"score":0.3208000063896179},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.30979999899864197},{"id":"https://openalex.org/C19619285","wikidata":"https://www.wikidata.org/wiki/Q196372","display_name":"Observational error","level":2,"score":0.2955999970436096},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.29120001196861267},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.28439998626708984},{"id":"https://openalex.org/C174084160","wikidata":"https://www.wikidata.org/wiki/Q908049","display_name":"Bound state","level":2,"score":0.28189998865127563},{"id":"https://openalex.org/C131584629","wikidata":"https://www.wikidata.org/wiki/Q4308705","display_name":"Coupling (piping)","level":2,"score":0.27649998664855957},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.27480000257492065},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.27390000224113464},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.27239999175071716},{"id":"https://openalex.org/C205049153","wikidata":"https://www.wikidata.org/wiki/Q2698605","display_name":"Polarization (electrochemistry)","level":2,"score":0.2535000145435333}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.5281/zenodo.24133813","doi":"https://doi.org/10.5281/zenodo.24133813","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24133813","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},{"id":"doi:10.5281/zenodo.24133814","doi":"https://doi.org/10.5281/zenodo.24133814","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24133814","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"}],"best_oa_location":{"id":"doi:10.5281/zenodo.24133813","doi":"https://doi.org/10.5281/zenodo.24133813","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24133813","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"This":[0,152],"paper":[1],"examines":[2],"what":[3],"the":[4,27,35,49,53,56,68,71,111,116,120,126],"precisely":[5],"known":[6],"hydrogen":[7,25],"hyperfine":[8,29,38],"interval":[9],"implies":[10],"for":[11],"a":[12,16,76,81,132],"spin":[13],"coupling":[14],"to":[15],"uniform":[17],"axial":[18],"background.":[19],"The":[20,86,105],"system":[21,54,121],"considered":[22],"is":[23,37,108,135,150,154],"ground-state":[24],"and":[26,34,45,55,64,66,125,156],"21-centimetre":[28],"transition":[30],"at":[31,70,122],"1420.405751768":[32],"MHz,":[33],"observable":[36],"frequency":[39],"precision":[40],"translated":[41],"into":[42],"an":[43],"energy":[44],"torsion":[46],"limit.":[47],"Evaluating":[48],"ordinary":[50,117],"behaviour":[51,118],"of":[52,84,119],"spin-torsion":[57],"contribution":[58,107],"under":[59],"explicit":[60],"assumptions":[61],"about":[62],"polarisation":[63],"uniformity,":[65],"inverting":[67],"comparison":[69],"stated":[72,136,159],"laboratory":[73],"precision,":[74,124],"gives":[75],"quantitative":[77],"bound":[78],"rather":[79],"than":[80],"qualitative":[82],"assertion":[83],"smallness.":[85],"computed":[87,157],"record":[88],"is:":[89],"nu_Hz":[90],"=":[91,94,97,100,103],"1.420e+09;":[92],"fractional_precision":[93],"1.000e-12;":[95],"energy_uncertainty_J":[96],"9.412e-37;":[98],"torsion_bound_per_m":[99],"2.977e-11;":[101],"splitting_eV":[102],"5.874e-06.":[104],"torsion-related":[106],"far":[109],"below":[110],"level":[112],"that":[113,128,138],"would":[114,129],"alter":[115],"current":[123],"value":[127],"have":[130],"produced":[131],"visible":[133],"residual":[134],"so":[137],"future":[139],"improvements":[140],"can":[141],"be":[142],"assessed":[143],"against":[144],"it":[145],"directly.":[146],"No":[147],"new":[148],"measurement":[149],"reported.":[151],"study":[153],"simulated":[155],"from":[158],"assumptions,":[160],"not":[161],"measured.":[162]},"counts_by_year":[],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2026-11-12T00:00:00"}