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Excitons in Solids

  • T. C. Collins
Chapter
  • 156 Downloads
Part of the NATO Advanced Study Institutes Series book series (ASIC, volume 46)

Abstract

The lectures here are concerned with excitations to the N-body system instead of the N±1-body system which is the normal result of an energy band calculation. Thus one has to investigate the two-body Green’s function formation and not stop with the single-particle function. In the first two lectures the Green’s function formalism is used to construct a set of Bethe-Salpeter equations from which the excitation energies and corresponding Bethe-Salpeter amplitudes are deduced [1]. The third part will describe one of the excited states that can be obtained using a laser beam on a semiconductor, namely the quantum mechanical fluid composed entirely of electrons and holes [2]. The exciton mechanism of superconductivity [3] and experimental evidence [4] are the subjects of the last lecture. This last part is still under study and the lecture will point out the current situation.

Keywords

Fermi Surface Dielectric Function Correlation Energy Metal Electron Exciton Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M.W. Ribarsky, Phys. Rev. A12, 1739 (1975).Google Scholar
  2. 2.
    W.F. Brinkman and T.M. Rice, Phys. Rev. B7, 1508 (1973).Google Scholar
  3. 3.
    D. Allender, J. Bray, and J. Bardeen, Phys. Rev. B7, 1020 (1973).Google Scholar
  4. 4.
    J.M. Lockhart, F.C. Witteborn and W.M. Fairbank, Phys. Rev. Letters 38, 1220 (1977).CrossRefGoogle Scholar
  5. 5.
    J. Paldus and J. Čižek, J. Chem. Phys. 60, 163 (1974).CrossRefGoogle Scholar
  6. 6.
    T.C. Collins, A.B. Kunz, and P.W. Deutsch, Phys. Rev. A10, 1034 (1974).Google Scholar
  7. 7.
    J. Ladik (in this volume).Google Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1978

Authors and Affiliations

  • T. C. Collins
    • 1
  1. 1.Office of Scientific ResearchBoiling AFBUSA

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