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BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Canal UGR - ECPv6.15.5//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-ORIGINAL-URL:https://canalugr.si2.dev X-WR-CALDESC:Eventos para Canal UGR REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:Europe/Madrid BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20200329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20201025T010000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=Europe/Madrid:20200616T110000 DTEND;TZID=Europe/Madrid:20200616T120000 DTSTAMP:20260621T152415 CREATED:20200611T113531Z LAST-MODIFIED:20200611T113531Z UID:340175-1592305200-1592308800@canalugr.si2.dev SUMMARY:Seminario de Geometría: "Approximation theorems for the Schrödinger equation and the reconnection of quantum vortices in Bose-Einstein condensates" DESCRIPTION:Seminario impartido por Alberto Enciso (ICMAT) \nAbstract: The Gross–Pitaevskii equation is a nonlinear Schrödinger equation that models the behavior of a Bose-Einstein condensate. The quantum vortices of the condensate are defined by the zero set of the wave function at time $t$. In this talk we will present recent work about how these quantum vortices can break and reconnect in arbitrarily complicated ways. As observed in the physics literature\, the distance between the vortices near the breakdown time\, say $t = 0$\, scales like the square root of $t$: it is the so-called $t^{1/2}$ law. At the heart of the proof — which ultimately entails understanding the evolution of curves in space — lies a remarkable global approximation property for the linear Schrödinger equation. The talk is based on joint work with Daniel Peralta-Salas. \nDatos de acceso a la sala virtual: \n\nTitulo de la reunión: Seminario de Geometría\nLa reunión tendrá lugar en la Sala NEWTON\nPara entrar en la reunión\, pulse el siguiente enlace: http://csirc.ugr.es/redes/VideoconferenciaWeb/accesosala.jsp?IDSALA=22965918\nContraseña de la reunión: 443047\n\n\n\nFecha: Martes\, 16 de junio de 2020\nHora: 11:00  – 12:00\nOrganiza: Instituto de Matemáticas Iemath-GR\nMás información: iemath@ugr.es URL:https://canalugr.si2.dev/evento/seminario-de-geometria-approximation-theorems-for-the-schrodinger-equation-and-the-reconnection-of-quantum-vortices-in-bose-einstein-condensates/ LOCATION:Videoconferencia CATEGORIES:Conferencias, seminarios, divulgación científica ATTACH;FMTTYPE=image/jpeg:https://canalugr.si2.dev/wp-content/uploads/2016/10/IEMathGR-logo-web.jpg END:VEVENT END:VCALENDAR