{"created":"2021-03-01T06:17:14.328916+00:00","id":694,"links":{},"metadata":{"_buckets":{"deposit":"3e5e8998-6283-4be7-9cb6-1d3947813102"},"_deposit":{"id":"694","owners":[],"pid":{"revision_id":0,"type":"depid","value":"694"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00000694"},"item_2_biblio_info_7":{"attribute_name":"\u66f8\u8a8c\u60c5\u5831","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-06-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"23","bibliographicVolumeNumber":"114","bibliographic_titles":[{"bibliographic_title":"Physical Review Letters"}]}]},"item_2_description_5":{"attribute_name":"\u6284\u9332","attribute_value_mlt":[{"subitem_description":"We report on a frequency ratio measurement of a Hg199-based optical lattice clock referencing a Sr87-based clock. Evaluations of lattice light shift, including atomic-motion-dependent shift, enable us to achieve a total systematic uncertainty of 7.2\u00d710\u221217 for the Hg clock. The frequency ratio is measured to be \u03bdHg/\u03bdSr=2.629\u2009314\u2009209\u2009898\u2009909\u200960(22) with a fractional uncertainty of 8.4\u00d710\u221217, which is smaller than the uncertainty of the realization of the International System of Units (SI) second, i.e., the SI limit.","subitem_description_type":"Abstract"}]},"item_2_description_6":{"attribute_name":"\u5185\u5bb9\u8a18\u8ff0","attribute_value_mlt":[{"subitem_description":"UTokyo Research\u63b2\u8f09\u300c\u6c34\u9280\u30fb\u30b9\u30c8\u30ed\u30f3\u30c1\u30a6\u30e0\u5149\u683c\u5b50\u6642\u8a08\u306e\u9ad8\u7cbe\u5ea6\u76f4\u63a5\u6bd4\u8f03\u306b\u6210\u529f\u300d URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/highly-precise-comparison-of-mercury-and-strontium-optical-lattice-clocks.html","subitem_description_type":"Other"},{"subitem_description":"UTokyo Research \"Highly-precise comparison of mercury and strontium optical lattice clocks\" URI: http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/highly-precise-comparison-of-mercury-and-strontium-optical-lattice-clocks.html","subitem_description_type":"Other"}]},"item_2_publisher_20":{"attribute_name":"\u51fa\u7248\u8005","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_2_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1103/PhysRevLett.114.230801","subitem_relation_type_select":"DOI"}}]},"item_2_relation_25":{"attribute_name":"\u95a2\u4fc2URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/highly-precise-comparison-of-mercury-and-strontium-optical-lattice-clocks.html","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/highly-precise-comparison-of-mercury-and-strontium-optical-lattice-clocks.html","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.230801","subitem_relation_type_select":"URI"}}]},"item_2_rights_12":{"attribute_name":"\u6a29\u5229","attribute_value_mlt":[{"subitem_rights":"\u00a9 2015 American Physical Society"}]},"item_2_select_14":{"attribute_name":"\u8457\u8005\u7248\u30d5\u30e9\u30b0","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_2_source_id_10":{"attribute_name":"\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID","attribute_value_mlt":[{"subitem_source_identifier":"AA11734748","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1079-7114","subitem_source_identifier_type":"ISSN"}]},"item_2_text_4":{"attribute_name":"\u8457\u8005\u6240\u5c5e","attribute_value_mlt":[{"subitem_text_value":"Quantum Metrology Laboratory, RIKEN"},{"subitem_text_value":"Innovative Space-Time Project, ERATO, JST"},{"subitem_text_value":"Department of Applied Physics, Graduate School of Engineering, The University of Tokyo"}]},"item_creator":{"attribute_name":"\u8457\u8005","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamanaka, Kazuhiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ohmae, Noriaki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ushijima, Ichiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takamoto, Masao"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Katori, Hidetoshi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"\u30d5\u30a1\u30a4\u30eb\u60c5\u5831","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-05-30"}],"displaytype":"detail","filename":"PhysRevLett.114.230801.pdf","filesize":[{"value":"780.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"PhysRevLett.114.230801.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/694/files/PhysRevLett.114.230801.pdf"},"version_id":"2f30f9a4-fff3-42a5-85ed-83c6212f99fd"}]},"item_language":{"attribute_name":"\u8a00\u8a9e","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"\u8cc7\u6e90\u30bf\u30a4\u30d7","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Frequency Ratio of 199Hg and 87Sr Optical Lattice Clocks beyond the SI Limit","item_titles":{"attribute_name":"\u30bf\u30a4\u30c8\u30eb","attribute_value_mlt":[{"subitem_title":"Frequency Ratio of 199Hg and 87Sr Optical Lattice Clocks beyond the SI Limit"}]},"item_type_id":"2","owner":"1","path":["9/10/11","6/153/154"],"pubdate":{"attribute_name":"\u516c\u958b\u65e5","attribute_value":"2015-06-30"},"publish_date":"2015-06-30","publish_status":"0","recid":"694","relation_version_is_last":true,"title":["Frequency Ratio of 199Hg and 87Sr Optical Lattice Clocks beyond the SI Limit"],"weko_creator_id":"1","weko_shared_id":2},"updated":"2021-03-01T10:56:15.780068+00:00"}