{"created":"2023-06-26T11:01:58.002279+00:00","id":2726,"links":{},"metadata":{"_buckets":{"deposit":"94929d73-add8-4d1c-a951-c0e096ee1ee3"},"_deposit":{"created_by":22,"id":"2726","owners":[22],"pid":{"revision_id":0,"type":"depid","value":"2726"},"status":"published"},"_oai":{"id":"oai:oist.repo.nii.ac.jp:00002726","sets":["7:235"]},"author_link":[],"item_10006_creator_3":{"attribute_name":"Author","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Zou, Shan","creatorNameLang":"en"}]}]},"item_10006_date_granted_11":{"attribute_name":"Degree Conferral Date","attribute_value_mlt":[{"subitem_dategranted":"2022-08-01"}]},"item_10006_degree_grantor_9":{"attribute_name":"Degree Conferrral Institution","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"Okinawa Institute of Science and Technology Graduate University"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"38005","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_8":{"attribute_name":"Degree","attribute_value_mlt":[{"subitem_degreename":"Doctor of Philosophy"}]},"item_10006_description_7":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"The potential for quantum information processing with surface-state electrons (SSE) on liquid helium has been pointed out in one of the historically first proposals for quantum computing [1]. The quantized Rydberg states of the vertical motion of SSE, as well as the spin states of SSE, present two promising candidates for the experimental implementation of qubit states. However, the lack of a sensitive state-readout method for a single electron has so far prevented much progress in implementation of these states for quantum computing. In order to overcome this obstacle, this PhD project seeks to lay the experimental groundwork for the realization of Rydberg state detection of SSE on liquid helium confined in microchannel devices, as well as their potential use for spin state detection. We start from the transport measurements of SSE in a microchannel setup, since well-understood transport behavior of SSE can help us to detect the Rydberg transition. An unusual transport effect is reported and discussed. By employing the time-resolved measurements, we show that the effect is due to the dynamical interaction of the electron crystal with the surface excitations of the liquid substrate. Next, the feasibility of detecting the transition between Rydberg states in a 4-µm deep channel device is demonstrated using two different methods, the conductivity method and the image-charge method. We find that the observed transition frequency for the two lowest Rydberg states, which is in the range of 0.4 − 0.5 THz, is determined by the image charges induced by SSE in the conducting electrodes of the microchannel device and the applied potentials, and is in a good agreement with our analytical and numerical calculations. Owing to the low sensitivity of this method, the number of SSE in the device is required to be large, on the order of 104, that is the sensitivity is far below the final goal of single electron readout. Taking advantage of the LC (tank) resonating circuits, we significantly improve the measurement sensitivity by employing a resonator albeit with a relatively low quality factor. Finally, we present our ongoing experimental efforts to optimize the resonator setup, in particularly increasing its quality factor, which is an important step towards realizing an ultra-sensitive readout of the single-electron Rydberg states.","subitem_description_type":"Other"}]},"item_10006_dissertation_number_12":{"attribute_name":"Degree Referral Number","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第97号 "}]},"item_10006_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15102/1394.00002461","subitem_identifier_reg_type":"JaLC"}]},"item_10006_rights_13":{"attribute_name":"Copyright Information","attribute_value_mlt":[{"subitem_rights":"© 2022 The Author"}]},"item_10006_text_24":{"attribute_name":"Exam Date","attribute_value_mlt":[{"subitem_text_value":"2022-07-12"}]},"item_10006_version_type_18":{"attribute_name":"Version Format","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-08-01"}],"displaytype":"detail","filename":"Zou - Full Text.pdf","filesize":[{"value":"35.2 MB"}],"format":"application/pdf","licensefree":"Creative Commons Attribution 4.0 International \n(https://creativecommons.org/licenses/by/4.0/)","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Zou - Full Text","objectType":"fulltext","url":"https://oist.repo.nii.ac.jp/record/2726/files/Zou - Full Text.pdf"},"version_id":"56c3f4b4-f294-403b-8011-1c2078257fae"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-08-01"}],"displaytype":"detail","filename":"Zou - Final Exam Abstract.pdf","filesize":[{"value":"42.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Zou - Final Exam Abstract","objectType":"abstract","url":"https://oist.repo.nii.ac.jp/record/2726/files/Zou - Final Exam Abstract.pdf"},"version_id":"aa1c85b9-bb1a-4c25-8f21-e84a6758b48c"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"マイクロチャンネルデバイスに閉じ込めた超流動ヘリウム上の電子のリュードベリ状態の検出","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"マイクロチャンネルデバイスに閉じ込めた超流動ヘリウム上の電子のリュードベリ状態の検出","subitem_title_language":"ja"},{"subitem_title":"Detection of the Rydberg States of Electrons on Superfluid Helium Confined in Microchannel Devices","subitem_title_language":"en"}]},"item_type_id":"10006","owner":"22","path":["235"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2022-08-01"},"publish_date":"2022-08-01","publish_status":"0","recid":"2726","relation_version_is_last":true,"title":["マイクロチャンネルデバイスに閉じ込めた超流動ヘリウム上の電子のリュードベリ状態の検出"],"weko_creator_id":"22","weko_shared_id":-1},"updated":"2023-09-01T02:33:04.513876+00:00"}