Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Photoemission beyond the sudden approximation

Almbladh, Carl-Olof LU (2006) Progress in Nonequilibrium Green's Functions III 35(1). p.127-144
Abstract
The many-body theory of photoemission in solids is reviewed with emphasis on methods based on response theory. The classification of diagrams into loss and no-loss diagrams is discussed and related to Keldysh path-ordering book-keeping. Some new results on energy losses in valence-electron photoemission from free-electron-like metal surfaces are presented. A way to group diagrams is presented in which spectral intensities acquire a Golden-Rule-like form which guarantees positiveness. This way of regrouping should be useful also in other problems involving spectral intensities, such as the problem of improving the one-electron spectral function away from the quasiparticle peak
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
many-body theory, energy losses, valence-electron photoemission, free-electron-like metal surfaces, one-electron spectral function, nonequilibrium Green's functions, quasiparticle peak, photoemission spectroscopy
host publication
Journal of Physics: Conference Series
volume
35
issue
1
pages
127 - 144
publisher
IOP Publishing
conference name
Progress in Nonequilibrium Green's Functions III
conference location
Kiel, Germany
conference dates
2005-08-22 - 2005-08-26
external identifiers
  • wos:000238978100011
  • scopus:33646503723
ISSN
1742-6588
1742-6596
DOI
10.1088/1742-6596/35/1/011
language
English
LU publication?
yes
id
64ad7572-b17c-4bff-bd1a-3c564161546c (old id 617310)
date added to LUP
2016-04-01 11:40:16
date last changed
2021-02-17 07:45:13
@inproceedings{64ad7572-b17c-4bff-bd1a-3c564161546c,
  abstract     = {The many-body theory of photoemission in solids is reviewed with emphasis on methods based on response theory. The classification of diagrams into loss and no-loss diagrams is discussed and related to Keldysh path-ordering book-keeping. Some new results on energy losses in valence-electron photoemission from free-electron-like metal surfaces are presented. A way to group diagrams is presented in which spectral intensities acquire a Golden-Rule-like form which guarantees positiveness. This way of regrouping should be useful also in other problems involving spectral intensities, such as the problem of improving the one-electron spectral function away from the quasiparticle peak},
  author       = {Almbladh, Carl-Olof},
  booktitle    = {Journal of Physics: Conference Series},
  issn         = {1742-6588},
  language     = {eng},
  number       = {1},
  pages        = {127--144},
  publisher    = {IOP Publishing},
  title        = {Photoemission beyond the sudden approximation},
  url          = {http://dx.doi.org/10.1088/1742-6596/35/1/011},
  doi          = {10.1088/1742-6596/35/1/011},
  volume       = {35},
  year         = {2006},
}