{"_buckets": {"deposit": "d5b49310-a48d-44cf-82fd-619561ed87be"}, "_deposit": {"created_by": 22, "id": "2786", "owners": [22], "pid": {"revision_id": 0, "type": "depid", "value": "2786"}, "status": "published"}, "_oai": {"id": "oai:oist.repo.nii.ac.jp:00002786", "sets": ["235"]}, "author_link": [], "item_10006_creator_3": {"attribute_name": "Author", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Keller, Tim", "creatorNameLang": "en"}]}]}, "item_10006_date_granted_11": {"attribute_name": "Degree Conferral Date", "attribute_value_mlt": [{"subitem_dategranted": "2022-08-31"}]}, "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": "In this thesis, I present two studies on controlling the state and properties of both single-species and composite quantum gases by tuning the various interaction strengths. In the first work, I derive a shortcut to adiabaticity (STA) for tuning a Feshbach resonance in repulsively interacting Bose-Einstein condensates (BECs) in the ThomasFermi regime. This shortcut mimics an adiabatic evolution and allows one to compress and expand a BEC without friction within an almost arbitrarily short time interval. I then use this technique to show how it can boost the performance of the so-called Feshbach quantum engine and also determine its limits and the instabilities it can lead to. The first part is complemented by a study demonstrating the general ineffectiveness of STAs as a tool to increase the attainable precision in critical quantum metrology at the example of two critical toy models. In the second part, I show that a strongly correlated one-dimensional quantum gas in the Tonks-Girardeau (TG) limit that is immersed into a BEC can undergo a transition to a crystal-like insulator state without any externally imposed lattice potential. I develop a model that accurately describes the system in the pinned insulator state, even if the TG gas has a finite temperature. Additionally, I study the superfluid state that can persist in the gas for finite interactions away from the TG limit and uncover the full phase diagram of the system.", "subitem_description_type": "Other"}]}, "item_10006_dissertation_number_12": {"attribute_name": "Degree Referral Number", "attribute_value_mlt": [{"subitem_dissertationnumber": "甲第100号"}]}, "item_10006_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15102/1394.00002519", "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": "2022-08-04"}]}, "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": "2022-09-16"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "TimKeller-ThesisFullText.pdf", "filesize": [{"value": "3.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensefree": "CC BY 4.0\nCreative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)", "licensetype": "license_note", "mimetype": "application/pdf", "size": 3300000.0, "url": {"label": "TimKeller-ThesisFullText", "objectType": "fulltext", "url": "https://oist.repo.nii.ac.jp/record/2786/files/TimKeller-ThesisFullText.pdf"}, "version_id": "cefedefe-383b-4d5b-8956-0b0dea5ee0e0"}, {"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2022-09-16"}], "displaytype": "detail", "download_preview_message": "", "file_order": 1, "filename": "TimKeller-FinalExamAbstract.pdf", "filesize": [{"value": "42.9 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 42900.0, "url": {"label": "TimKeller-FinalExamAbstract", "objectType": "abstract", "url": "https://oist.repo.nii.ac.jp/record/2786/files/TimKeller-FinalExamAbstract.pdf"}, "version_id": "4872ae56-5965-43c4-8daf-20e593ba18ce"}]}, "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": "相互作用する量子気体における超流動状態および絶縁状態の制御", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "相互作用する量子気体における超流動状態および絶縁状態の制御", "subitem_title_language": "ja"}, {"subitem_title": "Controlling Superfluid and Insulating States in Interacting Quantum Gases", "subitem_title_language": "en"}]}, "item_type_id": "10006", "owner": "22", "path": ["235"], "permalink_uri": "https://doi.org/10.15102/1394.00002519", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2022-09-16"}, "publish_date": "2022-09-16", "publish_status": "0", "recid": "2786", "relation": {}, "relation_version_is_last": true, "title": ["相互作用する量子気体における超流動状態および絶縁状態の制御"], "weko_shared_id": -1}