The Electron—Phonon Interaction

  • Wilfried Schäfer
  • Martin Wegener
Part of the Advanced Texts in Physics book series (ADTP)


As we have seen in Chap. 10, the Green’s function theory offers a systematic way to describe many-particle systems under arbitrary nonequilibrium conditions. Up to now, however, we have restricted ourselves to a rigid lattice. Under these conditions, nonequilibrium concerns only the particle system. The time evolution into a true quasi-equilibrium state, however, requires dis-sipative processes, i.e. the transfer of energy from the particle system to the lattice, which results from interaction with lattice vibrations. Moreover, completely different nonequilibrium states can arise because of this interaction, in particular if the lattice itself is driven out of equilibrium by interaction with the particle system. Thus our theory of scattering processes developed so far needs improvement.


Dielectric Function Acoustic Phonon Longitudinal Optical Coupling Matrix Element Quantum Kinetic Equation 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Wilfried Schäfer
    • 1
  • Martin Wegener
    • 2
  1. 1.Forschungszentrum Jülich GmbHJohn von Neumann - Institut für ComputingJülichGermany
  2. 2.Institut für Angewandte PhysikUniversität Karlsruhe (TH)KarlsruheGermany

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