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SUMMARY:Ground state properties of graphene in Hartree-Fock theory - Lewin
 \, M (CNRS and University of Cergy-Pontoise)
DTSTART:20120731T100000Z
DTEND:20120731T104500Z
UID:TALK39100@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:In this talk I will discuss the Hartree-Fock approximation of 
 graphene in infinite volume\, with instantaneous Coulomb interactions. \n\
 nFirst I will explain how to construct the translation-invariant ground st
 ate. Due to the exchange term\, the resulting effective Fermi velocity is 
 logarithmically divergent at zero momentum. Then I will discuss the existe
 nce of ground states in the presence of local defects and some properties 
 of the associated nonlinear response. \n\nJoint work with C. Hainzl and C.
  Sparber.\n\nRelated Links: http://arxiv.org/abs/1203.5016 - arXiv paper \
 n\n
LOCATION:Seminar Room 1\, Newton Institute
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