{"id":{"repo_id":"strathclyde","oai_identifier":"oai:strathclyde:nc580m70f"},"canonical_url":"https://search.dev.ndltd.org/etd/strathclyde/oai:strathclyde:nc580m70f","repository":{"repo_id":"strathclyde","name":"University of Strathclyde","base_url":"https://stax.strath.ac.uk/catalog/oai"},"display":{"title":"Creation of an all-optical Bose-Einstein condensate","abstract":"This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved.","abstract_html":"This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved.","abstract_has_math":false,"creators":["Ulibarrena, Andres"],"institution":"University of Strathclyde","degree_name":"phd","degree_level":"doctoral-pg","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Haller, Elmar","Kuhr, Stefan"],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020","date_published":"2020","updated_at":"2026-07-24T04:47:01Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.doi","label":"DOI","values":["10.48730/mmen-me03"],"render_values":[{"text":"10.48730/mmen-me03","href":"https://doi.org/10.48730/mmen-me03","code":true}]},{"key":"dc:identifier","label":"Identifier","values":["T15757"],"render_values":[{"text":"T15757","href":null,"code":true}]},{"key":"dc:creator.authoridentifier","label":"Author Identifier","values":["201681094"],"render_values":[{"text":"201681094","href":null,"code":true}]}]},"links":{"outbound_url":"https://stax.strath.ac.uk/concern/theses/nc580m70f","outbound_label":"Repository record","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Haller, Elmar","Kuhr, Stefan"]},{"key":"dc:creator","label":"Author","values":["Ulibarrena, Andres"]},{"key":"dc:creator.authoridentifier","label":"Author Identifier","values":["201681094"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020"]},{"key":"dc:date.issued","label":"Date","values":["2020"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Physics"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Strathclyde"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral-pg"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["phd"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["T15757"]},{"key":"dc:identifier.doi","label":"DOI","values":["10.48730/mmen-me03"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://stax.strath.ac.uk/concern/theses/nc580m70f"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved."]},{"key":"dc:description.abstract","label":"Abstract","values":["This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved."]},{"key":"dc:title","label":"Title","values":["Creation of an all-optical Bose-Einstein condensate"]}]}],"canonical_facts":{"dc:contributor.advisor":["Haller, Elmar","Kuhr, Stefan"],"dc:creator":["Ulibarrena, Andres"],"dc:creator.authoridentifier":["201681094"],"dc:date":["2020"],"dc:date.issued":["2020"],"dc:description":["This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved."],"dc:description.abstract":["This thesis reports on the experimental setup of the initial stages of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms experiments, the Bose-Einstein condensate is achieved by evaporating the atoms in a magnetic trap.;Due to the swallowness of magnetic traps, the evaporation sequence takes longer than in all-optical traps. One of the reasons for using all-optical traps is to have a high repetition rate.;After a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and trapping process, culminating in the creation of an all-optical Bose-Einstein condensate. The final chapter offers an overview on the future stages of the two-species bosonic quantum gas microscope.;In this thesis we detail our cooling techniques, such as grey molasses and the evaporative cooling process. We achieve temperatures as low as 4μK in clouds of 3*109 atoms after grey molasses and a BEC of 1.8*106 atoms with a total sequence time under 5s. There is still room for improvement in our BEC creation process and we are confident that higher numbers can be achieved."],"dc:identifier":["T15757"],"dc:identifier.doi":["10.48730/mmen-me03"],"dc:identifier.uri":["https://stax.strath.ac.uk/concern/theses/nc580m70f"],"dc:publisher.department":["Department of Physics"],"dc:publisher.institution":["University of Strathclyde"],"dc:title":["Creation of an all-optical Bose-Einstein condensate"],"dc:type.qualificationlevel":["doctoral-pg"],"dc:type.qualificationname":["phd"]},"updated_at":"2026-07-24T04:47:01Z"}