at Google ScholarTitle data
Axt, Vollrath Martin ; Bartels, G. ; Stahl, Arne:
Intraband Dynamics at the Semiconductor Band Edge : Shortcomings of the Bloch Equation Method.
In: Physical Review Letters.
Vol. 76
(1996)
Issue 14
.
- pp. 2543-2546.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.76.2543
Abstract in another language
The validity of the semiconductor Bloch equations (SBE) depends on the approximate decomposition of an intraband correlation function into a product of interband transition densities. We analyze the consequences of this approximation on the intraband dynamics of an optically excited semiconductor. As a special example where the SBE treatment becomes questionable we consider the THz emission of a narrow band superlattice in a static bias field. A comparison of the second order SBE solution with a rigorous second order treatment of this system helps one identify the weak points of the SBE approach and understand the physical background of its failure.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | dynamics controlled truncation; semiconductor superlattices; intra-band dynamics;
non-linear optics; ultrafast dynamics; excitons; terahertz emission |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 16 Oct 2017 10:14 |
| Last Modified: | 07 Mar 2022 13:54 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/40013 |