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SUMMARY:Non-reciprocal phase transitions - Vincenzo Vitelli\, Univ Chicago
DTSTART:20211019T120000Z
DTEND:20211019T130000Z
UID:TALK162559@talks.cam.ac.uk
CONTACT:Camille Scalliet
DESCRIPTION:The interaction between a peregrine falcon and a dove is visib
 ly non-reciprocal. What happens to the well established framework of phase
  transitions in non-reciprocal systems far from equilibrium? \n\nIn this t
 alk\, we address this question by looking at three archetypal classes of s
 elf-organization out of equilibrium: synchronization\, flocking and patter
 n formation. Simple demonstrations with robots will be presented along wit
 h naturally occurring phenomena from various domains of science that share
  a common feature: reciprocity has no reason to exist. In all these cases\
 , the emergence of unique time-dependent many-body phases can be captured 
 by combining insights from non-Hermitian quantum mechanics and bifurcation
  theory. This approach lays the foundation for a general theory of critica
 l phenomena in systems whose dynamics is not governed by an optimization p
 rinciple.
LOCATION:Center for Mathematical Sciences\, Lecture room MR11\, or https:/
 /maths-cam-ac-uk.zoom.us/j/98016675669
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