{"674258":{"#nid":"674258","#data":{"type":"event","title":"Enhanced trapped-ion laser cooling and quantum gate operations in structured light fields","body":[{"value":"\u003Cp\u003EKaran Mehta received BS. Degrees from UCLA in Physics and Electrical Engineering in 2010, and completed his PhD in Electrical Engineering and Computer Science at MIT in 2017, with the support of a DOE Science Graduate Fellowship. From 2017 to 2021 he was an ETH Postdoctoral Fellow, and subsequently senior scientist, in the Physics department at ETH Zurich. He joined Cornell ECE in January of 2022 where he leads the Photonics and Quantum Electronics group. He is recipient of an NSF CAREER award and a Sloan Research Fellowship in Physics.\u003C\/p\u003E\r\n","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe fundamental qualities of trapped atomic ion qubits are promising for long-term systems, but the optics required pose a major challenge in scaling. Interfacing low-noise atomic qubits with scalable integrated photonics [1] has emerged as a promising route forward, enabling practical extensibility while simultaneously lending robustness to noise in sensitive quantum operations [2]. Beyond scaling, though, such techniques further allow generation of optical field profiles enabling improvements to coherent and incoherent processes [3]. I will discuss modeling work from our group predicting substantially increased cooling rates as well as motional mode bandwidths for both Doppler and ground-state laser cooling in structured light fields [4], routes to quantum logic leveraging related ideas, initial characterization from recent foundry-fabricated trap devices, with fully integrated delivery of all wavelengths required to explore these ideas, and novel photonic components motivated by these applications. Scalable, integrated approaches to control hardware may enable substantial enhancements to basic physical operations in quantum computing as well as precision metrology.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E[1] K.K. Mehta, C.D. Bruzewicz, R. McConnell, R.J. Ram, J.M. Sage, and J. Chiaverini. \u201cIntegrated optical addressing of an ion qubit.\u201d Nature Nanotechnology 11, 1066-1070 (2016). [2] K.K. Mehta, C. Zhang, M. Malinowski, T.-L. Nguyen, M. Stadler, and J.P. Home. \u201cIntegrated optical multi-ion quantum logic.\u201d Nature 586, 533-537 (2020). [3] A. Ricci Vasquez, et al. \u201cControl of an atomic quadrupole transition in a phase-stable standing wave.\u201d PRL 130, 133201 (2023). [4] Z. Xing and K.K. Mehta. \u201cFast trapped-ion laser cooling in structured light fields.\u201d CLEO FM2A.2 (2023).\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Practical quantum information processing requires significant advances over current systems in error and robustness of basic operations, and in scale."}],"uid":"36562","created_gmt":"2024-04-18 14:24:51","changed_gmt":"2024-04-18 14:26:16","author":"tnevels9","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2024-05-15T14:00:00-04:00","event_time_end":"2024-05-15T16:00:00-04:00","event_time_end_last":"2024-05-15T16:00:00-04:00","gmt_time_start":"2024-05-15 18:00:00","gmt_time_end":"2024-05-15 20:00:00","gmt_time_end_last":"2024-05-15 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Howey Physics Building, Room N110","extras":[],"hg_media":{"673749":{"id":"673749","type":"image","title":"KMehta.jpg","body":null,"created":"1713450330","gmt_created":"2024-04-18 14:25:30","changed":"1713450330","gmt_changed":"2024-04-18 14:25:30","alt":"Karan Mehta","file":{"fid":"257182","name":"KMehta.jpg","image_path":"\/sites\/default\/files\/2024\/04\/18\/KMehta.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2024\/04\/18\/KMehta.jpg","mime":"image\/jpeg","size":798890,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2024\/04\/18\/KMehta.jpg?itok=FT1jQN7X"}}},"media_ids":["673749"],"groups":[{"id":"126011","name":"School of Physics"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"174045","name":"Graduate students"},{"id":"177814","name":"Postdoc"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}