{"308201":{"#nid":"308201","#data":{"type":"news","title":"Raychowdhury, Parihar Research Non-Boolean Computing Using Coupled Oscillators","body":[{"value":"\u003Cp\u003ECoupled oscillatory networks are omnipresent in nature and are responsible for a variety of synchronization phenomena ranging from chemical oscillations and circadian rhythms to the rhythmic flashing of fireflies. While the mathematical descriptions of such coupled systems are being actively studied by physicists, mathematicians and neurobiologists, recent advances in machine learning and intelligence have demonstrated possible applications of such networks in performing useful computation. One such paradigm that has evoked keen interest due to its neuro-computational properties is pattern-recognition and template-matching. This new type of computing architecture that stores information in the frequencies and phases of periodic signals could work more like the human brain, to do computing using a fraction of the energy of today\u0027s computers.\u003C\/p\u003E\u003Cp\u003EPh.D. student Abhinav Parihar is working with Arijit Raychowdhury, and associate professor in the School of Electrical and Computer Engineering at Georgia Tech, on understanding synchronization phenomenon in coupled relaxation oscillators along with collaborators from Penn State and Cornell University.\u0026nbsp;Recent experimental demonstrations of coupled integrated oscillators using Vanadium dioxide (\u003Cem\u003EVO\u003C\/em\u003E\u003Cem\u003E\u003Csub\u003E2\u003C\/sub\u003E\u003C\/em\u003E) by Professor Suman Datta\u2019s research group in Penn State are being studied by researchers in Georgia Tech who have further demonstrated the associative computing nature of such oscillatory systems.\u0026nbsp;Vanadium dioxide (\u003Cem\u003EVO\u003C\/em\u003E\u003Cem\u003E\u003Csub\u003E2\u003C\/sub\u003E\u003C\/em\u003E) is called a \u0022wacky oxide\u0022 because it transitions from a conducting metal to an insulating semiconductor and vice versa with the addition of a small amount of heat or electrical current. In a device configuration this oxide has been connected, via negative feedback, to create sustained oscillations that can be electrically coupled to neighboring oscillators using appropriate coupling functions. This coupled system could provide the basis for non-Boolean computing. The results were first reported in the May 14, 2014 online issue of Nature Publishing Group\u0027s\u0026nbsp;\u003Cem\u003EScientific Reports\u003C\/em\u003E\u0026nbsp;[1]. It was also featured on the National Science Foundation\u2019s front page as a top news story on May 23, 2014. The results of the findings have been further reported by a number of press articles [2-4] and Professor Raychowdhury and Professor Datta also presented their outlook on such non-Boolean computing paradigms on \u2018Weltanschauung\u2019 on \u003Ca href=\u0022http:\/\/www.kpft.org\/\u0022 target=\u0022_blank\u0022\u003EHouston\u2019s Public Radio\u003C\/a\u003E network on June 26, 2014.\u003C\/p\u003E\u003Cp\u003EAbhinav Parihar is funded by Intel Corporation and Georgia Tech.\u003C\/p\u003E\u003Cp\u003E[1] N. Shukla, A. Parihar, E. Freeman, H. Paik, G. Stone, V. Narayanan, H. Wen, Z. Cai, V. Gopalan, R. Engel-Herbert, D. G. Schlom, A. Raychowdhury, and S. Datta, \u201cSynchronized charge oscillations in correlated electron systems,\u201d Sci. Rep., vol. 4, May 2014.\u003Cbr \/\u003E[2]\u0026nbsp;\u003Ca href=\u0022http:\/\/www.sciencedaily.com\/releases\/2014\/05\/140514084332.htm\u0022 target=\u0022_blank\u0022\u003EScience Daily Article\u003C\/a\u003E\u003Cbr \/\u003E[3]\u0026nbsp;\u003Ca href=\u0022http:\/\/cacm.acm.org\/news\/175060-strongly-interacting-electrons-in-wacky-oxide-synchronize-to-compute-like-the-brain\/fulltext\u0022 target=\u0022_blank\u0022\u003ECommunications of the ACM Article\u003C\/a\u003E\u003Cbr \/\u003E[4] \u003Ca href=\u0022http:\/\/www.dailynewsen.com\/science\/strongly-interacting-electrons-in-wacky-oxide-synchronize-to-compute-like-the-brain-h2492350.html\u0022 target=\u0022_blank\u0022\u003EDaily News Article\u003C\/a\u003E\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EPh.D. student Abhinav Parihar is working with Arijit Raychowdhury, an associate professor in the School of Electrical and Computer Engineering at Georgia Tech, on understanding synchronization phenomenon in coupled relaxation oscillators along with collaborators from Penn State and Cornell University.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Ph.D. student Abhinav Parihar is working with Arijit Raychowdhury, an associate professor in the School of Electrical and Computer Engineering at Georgia Tech, on understanding synchronization phenomenon in coupled relaxation oscillators along with c"}],"uid":"27842","created_gmt":"2014-07-11 14:16:45","changed_gmt":"2016-10-08 03:16:45","author":"Ashlee Gardner","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2014-07-11T00:00:00-04:00","iso_date":"2014-07-11T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"groups":[{"id":"1255","name":"School of Electrical and Computer Engineering"}],"categories":[{"id":"42941","name":"Art Research"}],"keywords":[],"core_research_areas":[{"id":"39451","name":"Electronics and Nanotechnology"},{"id":"39541","name":"Systems"}],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EArijit Raychowdhury\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022mailto:arijit.raychowdhury@ece.gatech.edu\u0022\u003Earijit.raychowdhury@ece.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":["arijit.raychowdhury@ece.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}