Abstract
A microscopic theory is developed to analyze the dynamics of exciton formation out of incoherent carriers in semiconductor heterostructures. The carrier Coulomb and phonon interaction is included consistently. A cluster expansion method is used to systematically truncate the hierarchy problem. By including all correlations up to the four-point (i.e. two-particle) level, the fundamental Fermionic substructure of excitons is fully described. The analysis shows that the exciton formation is an intricate process where Coulomb correlations rapidly build up on a picosecond time scale while phonon dynamics leads to true exciton formation on a nanosecond time scale.
| Original language | English (US) |
|---|---|
| Article number | 155113 |
| Pages (from-to) | 1551131-15511317 |
| Number of pages | 13960187 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 67 |
| Issue number | 15 |
| State | Published - Apr 2003 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Influence of Coulomb and phonon interaction on the exciton formation dynamics in semiconductor heterostructures. / Hoyer, Walter; Kira, Mackillo; Koch, Stephan W.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 67, No. 15, 155113, 04.2003, p. 1551131-15511317.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of Coulomb and phonon interaction on the exciton formation dynamics in semiconductor heterostructures
AU - Hoyer, Walter
AU - Kira, Mackillo
AU - Koch, Stephan W
PY - 2003/4
Y1 - 2003/4
N2 - A microscopic theory is developed to analyze the dynamics of exciton formation out of incoherent carriers in semiconductor heterostructures. The carrier Coulomb and phonon interaction is included consistently. A cluster expansion method is used to systematically truncate the hierarchy problem. By including all correlations up to the four-point (i.e. two-particle) level, the fundamental Fermionic substructure of excitons is fully described. The analysis shows that the exciton formation is an intricate process where Coulomb correlations rapidly build up on a picosecond time scale while phonon dynamics leads to true exciton formation on a nanosecond time scale.
AB - A microscopic theory is developed to analyze the dynamics of exciton formation out of incoherent carriers in semiconductor heterostructures. The carrier Coulomb and phonon interaction is included consistently. A cluster expansion method is used to systematically truncate the hierarchy problem. By including all correlations up to the four-point (i.e. two-particle) level, the fundamental Fermionic substructure of excitons is fully described. The analysis shows that the exciton formation is an intricate process where Coulomb correlations rapidly build up on a picosecond time scale while phonon dynamics leads to true exciton formation on a nanosecond time scale.
UR - http://www.scopus.com/inward/record.url?scp=0037832558&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037832558&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0037832558
VL - 67
SP - 1551131
EP - 15511317
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 15
M1 - 155113
ER -