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SUMMARY:Mean-Fielding in Path-Integral Simulations of Quantum Condensed Ma
 tter Systems - George Trenins
DTSTART:20171011T131500Z
DTEND:20171011T133500Z
UID:TALK76311@talks.cam.ac.uk
CONTACT:Lisa Masters
DESCRIPTION:Feynman's path integral formulation of quantum mechanics revea
 ls an isomorphism between static thermal averages in quantum and extended 
 classical systems. Furthermore\, provided quantum coherence effects can be
  neglected\, an approximate isomorphism can be constructed for dynamical t
 hermal averages. In this talk I use the resulting description\, known as "
 Matsubara dynamics"\, to generalise an existing path-integral based approx
 imation and analyse the effects that mean-fielding approximations to Feynm
 an path fluctuations have on calculated dynamical properties\, namely IR a
 bsorption spectra.
LOCATION:Department of Chemistry\, Cambridge\, Unilever lecture theatre
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