BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The interchange model and related spin systems on two-block graphs
  - Jakob Bjornberg (Chalmers)
DTSTART:20220215T140000Z
DTEND:20220215T150000Z
UID:TALK169958@talks.cam.ac.uk
CONTACT:Perla Sousi
DESCRIPTION:The interchange model is a model in quantum statistical physic
 s with close connections to random permutations. In joint work with Hjalma
 r Rosengren and Kieran Ryan we recently analysed such models in a “two-b
 lock” setting. This includes complete bipartite graphs as a special case
 . Our method exploits algebraic aspects of the model and allows us to obta
 in explicit expressions for certain limiting quantities. In the “probabi
 listic regime” (which includes the Heisenberg ferromagnet) our results m
 ay be interpreted in terms of the appearance of macroscopic permutation cy
 cles. In other regimes we obtain an intriguing phase diagram.\nBased on: h
 ttps://arxiv.org/abs/2201.10209\n
LOCATION:MR12
END:VEVENT
END:VCALENDAR