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SUMMARY:The Henslow Fellow Lectures - Use of random matrices - Dr Stephani
 e Jacquot\, formerly of the Statistical Laboratory\, Centre for Mathematic
 al Sciences
DTSTART:20140514T173000Z
DTEND:20140514T180000Z
UID:TALK51923@talks.cam.ac.uk
CONTACT:Beverley Larner
DESCRIPTION:Random matrices (matrices with entries that are random) were f
 irst introduced in order to solve real physical systems. It all started in
  the 1950s with Eugene Wigner in nuclear physics. He was studying the ener
 gy of\nnuclei of some particles. The energy of these nuclei can take diffe
 rent values and are solutions to a physical equation involving an Hamilton
 ian\, which in essence contains the characteristics of the physical system
  (think of it as a matrix of infinite size). But this Hamiltonian is often
  unknown\, so it was not easy to obtain properties about those energies. H
 ow are they  distributed\, for instance? The solution to the problem was t
 o create a finite matrix whose structure captures the essence of the physi
 cal system. This made it possible to study the system and find out about t
 he structure of those energies. In our talk we will explain how we can fin
 d properties about those energies from this matrix representation\, and as
 k\, what is the chance of finding no energy at all in a large interval? 
LOCATION:Bristol-Myers-Squibb Lecture theatre\, Department of Chemistry
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