{"679216":{"#nid":"679216","#data":{"type":"event","title":"Clocks and precise measurements with ultracold molecules","body":[{"value":"\u003Cp\u003ETanya Zelevinsky graduated from\u0026nbsp;MIT\u0026nbsp;in physics and math, and received her physics PhD at\u0026nbsp;Harvard\u0026nbsp;University where her thesis work involved precise spectroscopy of helium atoms for testing QED and measuring the fine structure constant.\u0026nbsp; She came to\u0026nbsp;Columbia\u0026nbsp;University in 2008, after spending a few years building and improving the optical lattice atomic clock at JILA in Boulder, Colorado.\u0026nbsp; Her current research interests involve precision measurements via state-of-the-art optical spectroscopy and quantum manipulation of diatomic molecules.\u0026nbsp; Her group uses laser light to create ultracold molecules trapped in an optical lattice.\u0026nbsp; Lattice-clock style spectral resolution then allows quantum control of the molecules, leading to studies of molecular quantum physics and ultracold chemistry.\u0026nbsp; Her lab also explores ways to directly cool molecules in order to manipulate and study them.\u0026nbsp; An exciting future possibility is to apply the ultracold photodissociation technique developed earlier by her group in order to produce exotic ultracold gases for a variety of scientific applications.\u0026nbsp; T. Z. is also collaborating with University of Chicago \/ Argonne and University of Massachusetts to use cold diatomic molecules in combination with optical and microwave techniques to measure time-reversal symmetry violation in atomic nuclei (the Cold Molecule Nuclear Time Reversal Experiment, or CENTREX).\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe level of precision entered a new realm with the advent of laser cooling and trapping techniques.\u0026nbsp; Now we can extend the ultrahigh spectroscopic precision, or atomic clock technology, to more complex quantum particles such as diatomic molecules.\u0026nbsp; The ability to quantify molecular degrees of freedom, for example nuclear vibrations, with nearly atomic-clock level precision shines a light on their previously unseen properties.\u0026nbsp; Furthermore, it suggests possibilities to utilize the high precision for uncovering fundamental aspects of physical interactions, including improved tests of Newtonian gravity at the nanometer scale.\u0026nbsp; Additional scientific applications of cold diatomic molecules will also be explored.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Atomic spectroscopy has long been a cornerstone of our understanding of the physical world, with advances driven by ever-increasing precision."}],"uid":"36562","created_gmt":"2025-01-07 13:35:50","changed_gmt":"2025-01-14 14:23:39","author":"tnevels9","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-01-15T11:00:00-05:00","event_time_end":"2025-01-15T12:00:00-05:00","event_time_end_last":"2025-01-15T12:00:00-05:00","gmt_time_start":"2025-01-15 16:00:00","gmt_time_end":"2025-01-15 17:00:00","gmt_time_end_last":"2025-01-15 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Howey Physics Building, Room W401","extras":[],"hg_media":{"675958":{"id":"675958","type":"image","title":"TZPic20.jpg","body":null,"created":"1736257065","gmt_created":"2025-01-07 13:37:45","changed":"1736257065","gmt_changed":"2025-01-07 13:37:45","alt":"Tanya Zelevinsky","file":{"fid":"259644","name":"TZPic20.jpg","image_path":"\/sites\/default\/files\/2025\/01\/07\/TZPic20.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2025\/01\/07\/TZPic20.jpg","mime":"image\/jpeg","size":215420,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2025\/01\/07\/TZPic20.jpg?itok=9pdcVtfQ"}}},"media_ids":["675958"],"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":"177814","name":"Postdoc"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}