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[Fizinfo] KRFT tea: Bihary a molekularis elektronikarol

Chronological Thread 
  • From: Tamas Geszti <geszti AT>
  • To: Fizinfo AT
  • Cc: z-bihary AT, complex AT, fiziqs AT
  • Subject: [Fizinfo] KRFT tea: Bihary a molekularis elektronikarol
  • Date: Fri, 1 Apr 2005 14:39:58 +0200 (CEST)
  • List-archive: <>
  • List-id: ELFT HÍRADÓ <>


az ELTE Komplex Rendszerek Fizikája Tanszék teájára:

(Chemistry Department, Northwestern University
Evanston, USA):

Molecular electronics - Role of dephasing and electron correlation

After a brief summary on the field of molecular electronics, I present an
introduction to the Non-equilibrium Green function (Keldysh) formalism and
its current numerical applications for studying quantum transport in
molecular systems. These techniques are purely quantum-chemical in nature,
they do not take dephasing effects into account, therefore are incapable
of describing the transition from the purely elastic tunneling regime to the
classical, thermally dephased conduction regime. Another shortcoming of
the existing techniques is that they are of the self-consistent Hartree-Fock
(mean-field) type; hence they are not reliable in situations when
electron-electron correlations are strong. In my presentation, I propose
generalized and alternative approaches within the Keldysh formalism
to account for dephasing and correlation effects.

Az elõadás ideje: április 5-én, kedden kettõkor
helye: Pázmány Péter sétány 1/A (északi épület)
5.55-ös terem.

Az angol cím és kivonat ellenére, az elõadó magyarul fog beszélni.
Vendégeket, mint mindig, most is szívesen látunk.

  • [Fizinfo] KRFT tea: Bihary a molekularis elektronikarol, Tamas Geszti, 04/01/2005

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