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SUMMARY:Understanding interacting many-particle systems: accurate theories
  for liquids and electronic excitations in solids - Johannes Lischner (Imp
 erial)
DTSTART:20150617T100000Z
DTEND:20150617T104000Z
UID:TALK59838@talks.cam.ac.uk
CONTACT:Dr. Mike Towler
DESCRIPTION:Despite the simplicity of their microscopic constituents\, ele
 ctrons and nuclei\, the theoretical modeling of condensed matter systems i
 s very difficult. The origin of the problem is that a very large number of
  particles are interacting with each other. In my talk\, I will discuss\nv
 arious theoretical approaches to deal with interacting many-particle syste
 ms. In the first part\, I will introduce a new method to describe molecula
 r liquids\, such as water\, which plays an important role in\nbiophysics a
 nd electrochemistry.  In the second part\, I will describe recent theories
  of electronic excitations in materials. Specifically\, I will show how an
  accurate description of the interaction between electrons and\nplasmons\,
  quantized charge density oscillations\, can explain recent photoemission 
 experiments in doped graphene and silicon.
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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