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DTSTART:20210328T030000
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BEGIN:VEVENT
DTSTAMP:20260405T153410Z
UID:1633445100@ist.ac.at
DTSTART:20211005T164500
DTEND:20211005T174500
DESCRIPTION:Speaker: Piet Lammers\nhosted by M. Beiglböck\, N. Berestycki\
 , L. Erdös\, J. Maas\, F. Toninelli\nAbstract: Delocalisation plays an im
 portant role in statistical physics. This talk will discuss the delocalis
 ation transition in the context of height functions\, which are integer-va
 lued functions on the square lattice or similar two-dimensional graphs. By
  drawing a link with a phase coexistence result for site percolation on pl
 anar graphs\, we prove delocalisation for a broad class of height function
 s on planar graphs of degree three. The proof also uses a new technique fo
 r symmetry breaking. The analysis includes several popular models such as 
 the discrete Gaussian model\, the solid-on-solid model\, and the uniformly
  random K-Lipschitz function. Inclusion of the first model also implies th
 e BKT phase transition in the Villain model on the triangular lattice. The
  talk is based on arXiv:2012.09687 (https://arxiv.org/abs/2012.09687).
LOCATION:Heinzel Seminar Room (I21.EG.101)\, Office Building West\, ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at
SUMMARY:Piet Lammers: Height function delocalisation on cubic planar graphs
URL:https://talks-calendar.ista.ac.at/events/3274
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