Volume 40, Number 3, November I 1997
|Page(s)||311 - 316|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Coherent interaction between two exciton-phonon solitons due to Bose-Einstein condensation
Physics Department, University of Ottawa, Canada,
2 LOA, ENSTA, Ecole Polytechnique, Palaiseau, France
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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