{"181791":{"#nid":"181791","#data":{"type":"event","title":"Explorations of Spin-Nematic Dynamics in a Spin-1 BEC:  Squeezing, Non-Gaussian Distributions, and Stabilization","body":[{"value":"\u003Ch4\u003ESchool of Physics Hard Condensed Matter \u0026amp; AMO Seminar Series: Presenting Christopher D. Hamley\u003C\/h4\u003E\u003Cp\u003ECurrent study in quantum dynamical evolution of complex systems investigates quantum systems characterized by fluctuations and quantum correlations. \u0026nbsp;Spin-1 condensates are predicted to generate non-classical states with quantum correlations, specifically squeezed states in the early low depletion limit and highly non-Gaussian distributions in the long term beyond the low depletion limit. \u0026nbsp;These states are created due to the quantum fluctuations about an unstable equilibrium in the spin-nematic subspaces to which the system is initialized. \u0026nbsp;In this talk I will discuss the underlying theory along with our measurements of spin-nematic squeezing [1], the later non-Gaussian distributions [2], and our efforts to stabilize the initial unstable equilibrium by periodically perturbing the dynamics.\u003C\/p\u003E\u003Cp\u003E1. \u0026nbsp;C.D. Hamley, C.S. Gerving, T.M. Hoang, E.M. Bookjans, and M.S. Chapman, \u201cSpin-Nematic Squeezed Vacuum in a Quantum Gas,\u201d Nature Physics 8, 305-308 (2012).\u003Cbr \/\u003E2. \u0026nbsp;C.S. Gerving, T.M. Hoang, B.J. Land, M. Anquez, C.D. Hamley, and M.S. Chapman, \u201cNon-equilibrium dynamics of an unstable quantum pendulum explored in a spin-1 Bose\u2013Einstein condensate,\u201d Nature Communications 3, 1169 (2012)\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EExplorations of Spin-Nematic Dynamics in a Spin-1 BEC: \u0026nbsp;Squeezing, Non-Gaussian Distributions, and Stabilization\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Explorations of Spin-Nematic Dynamics in a Spin-1 BEC:  Squeezing, Non-Gaussian Distributions, and Stabilization"}],"uid":"27664","created_gmt":"2013-01-09 11:47:57","changed_gmt":"2016-10-08 02:01:55","author":"Alison Morain","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2013-01-17T13:00:00-05:00","event_time_end":"2013-01-17T14:00:00-05:00","event_time_end_last":"2013-01-17T14:00:00-05:00","gmt_time_start":"2013-01-17 18:00:00","gmt_time_end":"2013-01-17 19:00:00","gmt_time_end_last":"2013-01-17 19:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"https:\/\/www.physics.gatech.edu\/seminars-colloquia\/series\/hard-condensed-matter-and-atomic-molecular-optical\/christopher-hamley-2013","title":"https:\/\/www.physics.gatech.edu\/seminars-colloquia\/series\/hard-condensed-mat..."}],"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":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:alison.morain@physics.gatech.edu\u0022\u003Ealison.morain@physics.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}