{"667724":{"#nid":"667724","#data":{"type":"event","title":"PhD Proposal by Akash Vardhan","body":[{"value":"\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003ESchool of Physics Thesis Proposal\u003C\/strong\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003EPresenter\u003C\/strong\u003E:\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Akash Vardhan\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003E\u003Cspan\u003ETitle\u003C\/span\u003E\u003C\/strong\u003E\u003Cspan\u003E:\u003C\/span\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Self organizations via collisions in dry shape changing active matter\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003E\u003Cspan\u003EDate\u003C\/span\u003E\u003Cspan\u003E:\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; \u003C\/span\u003E\u003C\/strong\u003ETuesday, May 16, 2023\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003E\u003Cspan\u003ETime\u003C\/span\u003E\u003Cspan\u003E:\u003C\/span\u003E\u003C\/strong\u003E\u003Cspan\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; 11:00 a.m.\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003EPlace\u003C\/strong\u003E:\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Howey N201\/202 \u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Dr. Daniel Goldman, School of Physics, Georgia Institute of Technology (advisor)\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003EDr. Zeb Rocklin, School of Physics, Georgia Institute of Technology \u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003EDr. Kurt Wiesenfeld, School of Physics, Georgia Institute of Technology\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003EDr. Dana Randall, School of Mathematics, Georgia Institute of Technology\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003E\u003Cspan\u003E\u003Cspan\u003EAbstract\u003C\/span\u003E\u003C\/span\u003E\u003C\/strong\u003E\u003Cspan\u003E\u003Cspan\u003E:\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003EDry active matter, [1, 2] which is the study of collective behavior arising from\u003Cbr \/\u003E\r\nlocal interactions between agents driven out of equilibrium on a frictional sub- strate, has\u0026nbsp;\u003Cbr \/\u003E\r\nexhibited an assortment of rich and varied emergent phenomena. Most of these studies have by\u0026nbsp;\u003Cbr \/\u003E\r\ndefault focused on convex shaped particles that self-propel under the drive. There is another class\u0026nbsp;\u003Cbr \/\u003E\r\nof active matter that uses it\u2019s drive to change shape and can either self propel or remain\u0026nbsp;\u003Cbr \/\u003E\r\nimmotile, depending on the reaction forces exerted by the environment. These extended rigid bodies\u0026nbsp;\u003Cbr \/\u003E\r\ncan take concave shapes during their self-deformation cycles which offers the emergent benefit of\u0026nbsp;\u003Cbr \/\u003E\r\nentanglement via geometry due to interpenetration, as in the case of a pile of passive staples [4]\u0026nbsp;\u003Cbr \/\u003E\r\nor active worm blobs and staple like robots [10].\u003Cbr \/\u003E\r\nThe diffraction patterns observed when snakes [11] and a snake like robot [8] are allowed to pass\u0026nbsp;\u003Cbr \/\u003E\r\nthrough a pegged lattice. The mechanical intelligence shown by nematodes and a worm inspired robot\u0026nbsp;\u003Cbr \/\u003E\r\n[13] by modulating it\u2019s compliance upon collision with a lattice element. The contact mediated\u0026nbsp;\u003Cbr \/\u003E\r\nsynchronization of swimming nematodes [7, 6], which motivated a study on synchronization in 3 link\u0026nbsp;\u003Cbr \/\u003E\r\nrobotic swimmers [14] are some examples of novel phenomena exhibited by this class of active\u0026nbsp;\u003Cbr \/\u003E\r\nmatter.\u003Cbr \/\u003E\r\nIn this dissertation, I will focus on describing the gait dependent emergent self-organization,\u0026nbsp;\u003Cbr \/\u003E\r\nmediated via collisions in a robo-physical dry active matter system called Smarticles [9]. Rattling\u0026nbsp;\u003Cbr \/\u003E\r\ntheory [3] selects the configurations of a complex multi body system which experience the least\u0026nbsp;\u003Cbr \/\u003E\r\namount of fluctuations. I will describe in detail the elemental low rattling excitation called the\u0026nbsp;\u003Cbr \/\u003E\r\nGliders\u003Cbr \/\u003E\r\n[12] which spontaneously emerge during the relaxation of densely packed col- lectives of\u0026nbsp;\u003Cbr \/\u003E\r\nsmarticles. These excitations dynamically phase lock to a constant phase difference in their gaits,\u0026nbsp;\u003Cbr \/\u003E\r\nand can remain bound and locomoting for several cycles without any external source of attraction. I\u0026nbsp;\u003Cbr \/\u003E\r\nwill give an explanation for the binding mechanism and the transport of these gliders. These\u0026nbsp;\u003Cbr \/\u003E\r\nmechanical counter-parts to the simulated gliders observed in several elementary cellular automata\u0026nbsp;\u003Cbr \/\u003E\r\nlike ECA-54 and 110 in 1D and the famous Game of life in 2D, also cycle through the same set of\u0026nbsp;\u003Cbr \/\u003E\r\nconfigurations as they propagate like their digital\u003Cbr \/\u003E\r\ncousins. Finally, I will shift to large ensembles of these robots and describe the\u003Cbr \/\u003E\r\nself organization exhibited in the bulk from the propensity of gliders to link with other\u0026nbsp;\u003Cbr \/\u003E\r\nsmarticles, thus forming polymer chain like structures. I will end with the on-going endeavors on\u0026nbsp;\u003Cbr \/\u003E\r\ntrying to harness the observed self-organization via feedback and control towards something\u0026nbsp;\u003Cbr \/\u003E\r\nfunctional and task oriented [5].\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003Cbr \/\u003E\r\n\u0026nbsp;\u003C\/p\u003E\r\n","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003ESelf organizations via collisions in dry shape changing active matter\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Self organizations via collisions in dry shape changing active matter"}],"uid":"27707","created_gmt":"2023-05-11 20:20:02","changed_gmt":"2023-05-11 20:20:02","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2023-05-16T11:00:00-04:00","event_time_end":"2023-05-16T13:00:00-04:00","event_time_end_last":"2023-05-16T13:00:00-04:00","gmt_time_start":"2023-05-16 15:00:00","gmt_time_end":"2023-05-16 17:00:00","gmt_time_end_last":"2023-05-16 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":" Howey N201\/202 ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}