Self-Trapping of Exciton-Polariton Condensates in GaAs Microcavities. Ballarini, D., Chestnov, I., Caputo, D., De Giorgi, M., Dominici, L., West, K., Pfeiffer, L., Gigli, G., Kavokin, A., & Sanvitto, D. Physical Review Letters, American Physical Society, 2019. cited By 4
Self-Trapping of Exciton-Polariton Condensates in GaAs Microcavities [link]Paper  doi  abstract   bibtex   
The self-trapping of exciton-polariton condensates is demonstrated and explained by the formation of a new polaronlike state. Above the polariton lasing threshold, local variation of the lattice temperature provides the mechanism for an attractive interaction between polaritons. Because of this attraction, the condensate collapses into a small bright spot. Its position and momentum variances approach the Heisenberg quantum limit. The self-trapping does not require either a resonant driving force or a presence of defects. The trapped state is stabilized by the phonon-assisted stimulated scattering of excitons into the polariton condensate. While the formation mechanism of the observed self-trapped state is similar to the Landau-Pekar polaron model, this state is populated by several thousands of quasiparticles, in a striking contrast to the conventional single-particle polaron state. © 2019 American Physical Society.
@ARTICLE{Ballarini2019,
author={Ballarini, D. and Chestnov, I. and Caputo, D. and De Giorgi, M. and Dominici, L. and West, K. and Pfeiffer, L.N. and Gigli, G. and Kavokin, A. and Sanvitto, D.},
title={Self-Trapping of Exciton-Polariton Condensates in GaAs Microcavities},
journal={Physical Review Letters},
year={2019},
volume={123},
number={4},
doi={10.1103/PhysRevLett.123.047401},
art_number={047401},
note={cited By 4},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069960702&doi=10.1103%2fPhysRevLett.123.047401&partnerID=40&md5=ff07284d321f9b77e9efbdb4dba9a911},
abstract={The self-trapping of exciton-polariton condensates is demonstrated and explained by the formation of a new polaronlike state. Above the polariton lasing threshold, local variation of the lattice temperature provides the mechanism for an attractive interaction between polaritons. Because of this attraction, the condensate collapses into a small bright spot. Its position and momentum variances approach the Heisenberg quantum limit. The self-trapping does not require either a resonant driving force or a presence of defects. The trapped state is stabilized by the phonon-assisted stimulated scattering of excitons into the polariton condensate. While the formation mechanism of the observed self-trapped state is similar to the Landau-Pekar polaron model, this state is populated by several thousands of quasiparticles, in a striking contrast to the conventional single-particle polaron state. © 2019 American Physical Society.},
publisher={American Physical Society},
issn={00319007},
coden={PRLTA},
pubmed_id={31491238},
document_type={Article},
source={Scopus},
}

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