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SUMMARY:Lea Bossmann (FAU Erlangen-Nürnberg)
DTSTART:20241112T131500Z
DTEND:20241112T140000Z
DTSTAMP:20260423T021251Z
UID:MAS-MP/81
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/MAS-MP/81/">
 Focusing dynamics for 2d Bose gases in the instability regime</a>\nby Lea 
 Bossmann (FAU Erlangen-Nürnberg) as part of Munich-Copenhagen-Santiago Ma
 thematical Physics seminar\n\n\nAbstract\nWe consider the dynamics of a 2d
  Bose gas with singular attractive interactions in the instability regime\
 , where the corresponding focusing nonlinear Schrödinger equation (NLS) h
 as a blow-up. We show that the evolution of the condensate is effectively 
 described by this NLS for all times before the blow-up. Moreover\, we prov
 e the validity of the Bogoliubov approximation for the fluctuation dynamic
 s\, resulting in a norm approximation of the many-body dynamics. This is j
 oint work with Charlotte Dietze and Phan Thành Nam.\n
LOCATION:https://researchseminars.org/talk/MAS-MP/81/
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