Abstract
We rediscuss a nonequilibrium x-ray edge problem which in recent publications led to discrepancies between the results of the perturbative and of an extended Nozieres-De Dominicis approach. We show that this problem results from an uncritical separation of momenta of the scattering potential, and we propose a corrected Nozieres-De Dominicis solution.
Original language | English |
---|---|
Article number | 153104 |
Number of pages | 4 |
Journal | Physical Review. B, Condensed matter and materials physics |
Volume | 68 |
Issue number | 15 |
DOIs | |
Publication status | Published - 15 Oct 2003 |
Keywords
- SINGULARITIES
- ABSORPTION
- EMISSION
- METALS