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SUMMARY:Jean Barbier (ICTP)
DTSTART:20200423T140000Z
DTEND:20200423T150000Z
DTSTAMP:20260422T225752Z
UID:MathICTPSeminars2020/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/MathICTPSemi
 nars2020/2/">Phase transitions: from physics to computer science</a>\nby J
 ean Barbier (ICTP) as part of Basic Notions Seminar\n\nLecture held in zoo
 m meeting.\n\nAbstract\nPhase transitions happen in complex systems\, syst
 ems made of very many interacting entities\, and correspond to a change of
  macroscopic state of the system when some external control parameter is t
 uned. The classical example are molecules of water globally changing from 
 ice to liquid to vapour (to plasma) as temperature increases. But in the p
 ast 50 years it has been realised that phase transitions are much more «u
 niversal»\, in the sense that they also happen in systems that may a prio
 ri be considered far from the realm of condensed matter physics: neuroscie
 nces\, biological systems\, financial markets\, but also in more abstract 
 «Information processing systems»: computer science and algorithms for co
 mbinatorial optimisation\, machine learning from data\, or inference of la
 rge signals hidden in noise. «No way… Yes way!»\n
LOCATION:https://researchseminars.org/talk/MathICTPSeminars2020/2/
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