| Issue |
Europhys. Lett.
Volume 40, Number 3, November I 1997
|
|
|---|---|---|
| Page(s) | 311 - 316 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00458-0 | |
| Published online | 01 September 2002 | |
Coherent interaction between two exciton-phonon solitons due to Bose-Einstein condensation
1
Physics Department, University of Ottawa, Canada,
K1N 6N5
2
LOA, ENSTA, Ecole Polytechnique, Palaiseau,
France
Received:
20
June
1997
Accepted:
15
September
1997
Nonlinear interaction between two soliton pulses consisting of exciton-phonon
coherent fields is observed after propagation in 
. Each soliton is
formed independently by random photocreation of hot excitons followed by rapid
cooling and Bose-Einstein condensation. The positive interference appears with
a delay attributed to the build-up of a common phase for the wavefunctions.
PACS: 71.35.Lk – Collective effects (Bose effects, phase space filling, and excitonic phase transitions) / 05.30.Jp – Boson systems / 63.20.Ls – Phonon interactions with other quasiparticles
© EDP Sciences, 1997
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