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SUMMARY:Tunable Matter - Andrea Liu (University of Pennsylvania)
DTSTART:20260203T130000Z
DTEND:20260203T140000Z
UID:TALK243418@talks.cam.ac.uk
CONTACT:Balázs Németh
DESCRIPTION:In 1972 Phil Andersen articulated the motto of condensed matte
 r physics as “More is different.” However\, for most condensed matter 
 systems many more is quite similar to more. Here I argue for a class of co
 ndensed matter\, “tunable matter\,” in which many more is more differe
 nt—the behaviors of more and of many more can be quite different. A fami
 liar example of tunable matter is the brain\, whose cognitive capabilities
  increase as size increases from 302 neurons (C. Elegans) to a million neu
 rons (honeybees) to 100 billion neurons (humans). Tunable matter extends f
 ar beyond the Hopfield model\, which exemplifies this behavior. Indeed\, I
  propose that tunable matter provides a unifying conceptual framework for 
 understanding emergent collective function in a wide class of biological s
 ystems. Finally\, I will discuss new non-biological systems capable of bei
 ng trained to develop desired complex collective behaviors without using a
  processor. 
LOCATION:Center for Mathematical Sciences\, Lecture room MR4.
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